I have the following error when try to submit a form:
"javax.servlet.ServletException: javax.servlet.jsp.JspException: No bean found under attribute key user"
These are my files:
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.struts1</groupId>
<artifactId>struts1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.4</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts-core</artifactId>
<version>1.3.10</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts-taglib</artifactId>
<version>1.3.10</version>
</dependency>
</dependencies>
</project>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>struts1</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>
org.apache.struts.action.ActionServlet
</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>
/WEB-INF/struts-config.xml
</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
struts-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.3//EN"
"http://struts.apache.org/dtds/struts-config_1_3.dtd">
<struts-config>
<form-beans>
<form-bean name="user" type="com.struts1.domain.User" />
</form-beans>
<action-mappings>
<action name="user" path="/userInteraction" scope="request" type="com.struts1.controller.UserInteraction" input="/index.jsp">
<forward name="success" path="/user.jsp" redirect="true" />
</action>
</action-mappings>
</struts-config>
index.jsp
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%#taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<%#taglib uri="http://struts.apache.org/tags-logic" prefix="logic"%>
<%# taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Main Page</title>
</head>
<body>
<html:form action="/userInteraction.do">
<html:submit value="Send" />
</html:form>
</body>
user.jsp
<%# page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<%#taglib uri="http://struts.apache.org/tags-logic" prefix="logic"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<h1>Hello user!</h1>
<logic:equal name="user" property="firstName" value="evgheni" scope="request">
User Logged In
</logic:equal>
</body>
</html>
UserInteraction.java (action class)
package com.struts1.controller;
import java.io.PrintWriter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.struts1.domain.User;
import com.struts1.persistance.UserDAOImpl;
import com.struts1.persistanceI.UserDAO;
public class UserInteraction extends Action{
#Override
public ActionForward execute(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response) throws Exception{
UserDAO userDAO = new UserDAOImpl();
request.setAttribute("user", userDAO.getUser(1));
return mapping.findForward("success");
}
}
User.java
package com.struts1.domain;
import org.apache.struts.action.ActionForm;
public class User extends ActionForm{
private String firstName;
private String lastName;
private int id;
public User(String firstName, String lastName, int id) {
this.firstName = firstName;
this.lastName = lastName;
this.id = id;
}
public User() {
super();
}
// getters and setter go here
}
The userDAO.getUser(1) returns a User from DB by its id.
The javax.servlet.ServletException error appears after form submitting.
I'm using tomcat7 container, and Java 8.
As the exception suggests, there is no bean found under attribute key "user", so our area of interest is the mappings in the struts-config file. As I can see you have a proper mapping between the <action> and the <form-bean> but when the first request is sent to the Action class, there is a forward which takes us to the user.jsp but there is redirect to the user.jsp, which means a new request will be generated by the client for user.jsp, so the request parameters will be lost in the process.
For more details on forward vs redirect please go through this link.
Just remove the redirect attribute in the forward mapping and your code will work fine.
Related
I am working on java web project (maven) and used spring. Everything worked fine with spring, till I used spring form tags. While running jsp, error pops,
org.apache.jasper.JasperException: The absolute uri: [http://www.springframework.org/tags/form] cannot be resolved in either web.xml or the jar files deployed with this application
I am giving code from files as follows:
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.sd</groupId>
<artifactId>springMVC</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.3</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.1.8.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.1.8.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.security/spring-security-taglibs -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
<version>3.2.4.RELEASE</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.36</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
</dependencies>
</project>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:web="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" id="WebApp_ID" version="2.4">
<!-- <servlet>
<servlet-name>springdemo</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/springdemo-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springdemo</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping> -->
</web-app>
form.jsp
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%# taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form:form path="student" action ="handleForm">
<form:label path="" value="Enter your personal information"></form:label>
<form:input path="name" /><br>
<form:label path="" value="Gender"></form:label>
Male:
<form:radiobutton path="gender" value="male"/><br>
Female:
<form:radiobutton path="gender" value="female"/><br>
<form:label path="" value="Age"></form:label>
<form:input path="age" /><br>
<input type="submit" value="submit">
</form:form>
</body>
</html>
springdemo-servlet.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- Adding Support for Component Scan -->
<context:component-scan base-package="com.springMVCcontroller" />
<!-- Configure View Resolver -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/view/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
myWebInitializer.java
package com.springMVCcontroller;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
public class MyWebInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
public MyWebInitializer() {
// TODO Auto-generated constructor stub
}
#Override
protected Class<?>[] getRootConfigClasses() {
// TODO Auto-generated method stub
return null;
}
#Override
protected Class<?>[] getServletConfigClasses() {
// TODO Auto-generated method stub
return new Class[] {ConfigClass.class};
}
#Override
protected String[] getServletMappings() {
// TODO Auto-generated method stub
return new String[] {"/"};
}
}
configClass.java
package com.springMVCcontroller;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
#Configuration
#ComponentScan({"com.springMVCcontroller"})
public class ConfigClass {
#Bean
public InternalResourceViewResolver viewResolver()
{
InternalResourceViewResolver ivr=new InternalResourceViewResolver();
ivr.setPrefix("/view/");
ivr.setSuffix(".jsp");
return ivr;
}
}
Hi i'm creating a simple form and displaying their value in another jsp page using maven struts 1.3 dependencies but i m getting the following error
HTTP Status 500 - An exception occurred processing JSP page /success.jsp at line 13
type Exception report
message An exception occurred processing JSP page /success.jsp at line 13
description The server encountered an internal error that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: An exception occurred processing JSP page /success.jsp at line 13
10: </head>
11: <body>
12: <h1>Congrats!!!</h1>
13: <bean:write name="loginForm" property="firstName" />
14: </body>
15: </html>
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:574)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:461)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
javax.servlet.ServletException: javax.servlet.jsp.JspException: Cannot find bean: "loginForm" in any scope
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:909)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:838)
org.apache.jsp.success_jsp._jspService(success_jsp.java:147)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
javax.servlet.jsp.JspException: Cannot find bean: "loginForm" in any scope
org.apache.struts.taglib.TagUtils.lookup(TagUtils.java:864)
org.apache.struts.taglib.bean.WriteTag.doStartTag(WriteTag.java:233)
org.apache.jsp.success_jsp._jspx_meth_bean_005fwrite_005f0(success_jsp.java:167)
org.apache.jsp.success_jsp._jspService(success_jsp.java:131)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
here is all of my code
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.maven</groupId>
<artifactId>StrutsWebApp</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>StrutsWebApp Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts-core</artifactId>
<version>1.3.10</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts-taglib</artifactId>
<version>1.3.10</version>
</dependency>
</dependencies>
<build>
<finalName>StrutsWebApp</finalName>
</build>
</project>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>LoginFormStruts</display-name>
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>
/WEB-INF/struts-config.xml
</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>
</web-app>
struts-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.3//EN"
"http://struts.apache.org/dtds/struts-config_1_3.dtd">
<struts-config>
<form-beans>
<form-bean name="loginForm" type="amit.forms.LoginForm" />
</form-beans>
<action-mappings>
<action name="loginForm" path="/login"
type="amit.action.LoginAction" scope="request"
input="/login.jsp">
<forward name="success" path="/success.jsp" redirect="true" />
</action>
</action-mappings>
</struts-config>
LoginAction.java
package amit.action;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
public class LoginAction extends Action {
#Override
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
System.out.println("hello");
return mapping.findForward("success");
}
}
LoginForm.java
package amit.forms;
import org.apache.struts.action.ActionForm;
public class LoginForm extends ActionForm {
private static final long serialVersionUID = 1L;
private String firstName = null;
private String lastName = null;
private String phoneNo = null;
private String zipCode = null;
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getPhoneNo() {
return phoneNo;
}
public void setPhoneNo(String phoneNo) {
this.phoneNo = phoneNo;
}
public String getZipCode() {
return zipCode;
}
public void setZipCode(String zipCode) {
this.zipCode = zipCode;
}
login.jsp
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%# taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Login Example</title>
</head>
<body>
<html:form action="/login" focus="firstName">
<table>
<tr><td>First Name:</td><td><html:text property="firstName" /></td></tr>
<tr><td>Last Name:</td><td><html:text property="lastName" /></td></tr>
<tr><td>Phone No:</td><td><html:text property="phoneNo" /></td></tr>
<tr><td>Postal Code:</td><td><html:text property="zipCode" /></td></tr>
<tr><td colspan="2"><html:submit value="login" /></td></tr>
</table>
</html:form>
</body>
</html>
}
success.jsp
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%# taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<%# taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Welcome Page</title>
</head>
<body>
<h1>Congrats!!!</h1>
<bean:write name="loginForm" property="firstName" />
</body>
</html>
i just remove the
scope="request"
from my struts-config.xml and its start working
I've looked at every post I could find on the this issue but every time I do it seems like my configurations are as they should be.
When I type in the URL http:/localhost:8080/ I get the correct index.jsp displayed, but when I type in http:/localhost:8080/account I get the 404 error.
Any advice would be greatly appreciated!
Project Structure
ProjectName
-v .idea
-v src
---v main
-----v java
-------v springmvc.controllers
---------> AccountController.java
-----v resources
-------> application-context.xml
-------> log4j.properties
-----v webapp
-------v WEB-INF
---------v views
-----------> account.jsp
---------> web.xml
-------> index.jsp
-> pom.xml
AccountController.java
package springmvc.controllers;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
#Controller
#RequestMapping("/account")
public class AccountController {
#RequestMapping(value = "/account", method = RequestMethod.GET)
public ModelAndView findAllAccounts() throws Exception {
ModelAndView mav = new ModelAndView();
mav.setViewName("account");
mav.addObject("someText", "Listing all accounts!");
return mav;
}
#RequestMapping(value="/{accountId}", method = RequestMethod.GET)
public ModelAndView findAccount(#PathVariable int accountId, Model model) {
ModelAndView mav = new ModelAndView();
mav.setViewName("account");
mav.addObject("someText", String.format("Showing account %d", accountId));
return mav;
}
}
application-context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context" xmlns:util="http://www.springframework.org/schema/util"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:security="http://www.springframework.org/schema/security"
xmlns:p="http://www.springframework.org/schema/p" xmlns:task="http://www.springframework.org/schema/task"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-3.1.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
<mvc:annotation-driven />
<context:component-scan base-package="springmvc.controllers" />
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
account.jsp
<%# page contentType="text/html;charset=UTF-8" language="java" %>
<%# taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<h1>${someText}</h1>
web.xml
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:application-context.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>springDispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:application-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springDispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
index.jsp
<%# page import="java.util.Calendar" %>
<%#page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<% Calendar cal = Calendar.getInstance();%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Hello, the time is <%= cal.getTime() %> </h1>
</body>
</html>
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.project.projectName</groupId>
<artifactId>ProjectName</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>SpringMVC Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<org.springframework.version>4.0.6.RELEASE</org.springframework.version>
<hibernate.version>5.2.1.Final</hibernate.version>
<mysql.connector.version>5.5.49</mysql.connector.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
</dependencies>
<build>
<finalName>ROOT</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
You have added #RequestMapping("/account")
public class AccountController {
above your controller class, Therefore your controller will only map requests with /accounts header only,
As you have added #RequestMapping(value = "/account", method = RequestMethod.GET) in your method also, the controller will be looking for a accounts/accounts/ requests to execute the particular method.
Try http:/localhost:8080/account/account
or remove the class level request mapping.
So, I'm trying to learn some Spring MVC and the first tutorial I try has a model.addAttribute("printme", "From spring"); and in the JSP a ${printme}.
My controller is simple:
#RequestMapping(value = "index", method = RequestMethod.GET)
public String index(Model modelMap) {
System.out.println("on method");
modelMap.addAttribute("printme", "Hello Spring FROM INDEX !!");
return "index";
}
When I run the code it doesn't work, so I started adding to the JSP.
I wound up with this in the body:
<h1>
${param.printme}
<br />
${printme}
<br />
${requestScope.printme}
<br />
<%=request.getParameter("printme")%>
<br />
<%=request.getAttribute("printme")%>
<br />
<%=pageContext.findAttribute("printme")%>
</h1>
and my output source looks like this:
<h1>
<br />
<br />
Hello Spring FROM INDEX !!
<br />
null
<br />
Hello Spring FROM INDEX !!
<br />
Hello Spring FROM INDEX !!
</h1>
I expected param.printme to me empty string, as well as null from request.getParameter().
Shouldn't ${printme} search requestScope and find it?
Shouldn't ${printme} be the same as
${requestScope.printme}
<%=requestScope.getAttribute("printme")%>, and
<%=pageContext.findAttribute("printme")%>?
What's going on here, why isn't ${printme} finding the attribute?
I know I can just keep using ${requestScope.printme}, but it's more verbose, and I want to know why it's acting the way it is.
In case it matters I'm using Tomcat7.0.52, Spring 4.0 xsds, and java ee 3.0 xsds.
I have the following simple project:
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>biz.tugay</groupId>
<artifactId>smvcelex</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>smvcelex Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.el</groupId>
<artifactId>javax.el-api</artifactId>
<version>3.0.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.0.5.RELEASE</version>
</dependency>
</dependencies>
<build>
<finalName>smvcelex</finalName>
<plugins>
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>9.2.1.v20140609</version>
</plugin>
</plugins>
</build>
<properties>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
</project>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<servlet>
<servlet-name>springDispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/servletContext.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springDispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<url-pattern>*.jspf</url-pattern>
<page-encoding>UTF-8</page-encoding>
<scripting-invalid>true</scripting-invalid>
<trim-directive-whitespaces>true</trim-directive-whitespaces>
<default-content-type>text/html</default-content-type>
</jsp-property-group>
</jsp-config>
</web-app>
servletContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd">
<bean id="sampleController" class="biz.tugay.SampleController"/>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver"/>
</beans>
SampleController.java
package biz.tugay;
/* User: koray#tugay.biz Date: 2016/08/16 */
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
#Controller
#RequestMapping(value = "/")
public class SampleController {
#RequestMapping(value = "", method = RequestMethod.GET)
public String indexController(Model model) {
model.addAttribute("printme", "Hello Spring FROM INDEX !!");
return "index.jsp";
}
}
and finally index.jsp
<%# page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>Hello</title>
</head>
<body>
${printme}
</body>
</html>
And when I visit localhost:8080 I will see the text
Hello Spring FROM INDEX !!
just fine..
Please compare your project with this one, provide additional code and ask further if required.
It looks to me like you don't have jstl referenced in the top of your jsp files. The dollar sign is jstl shorthand. Make sure you have the following in the top of your jsp files.
<%# taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%# taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
I have created a web dynamic project using hibernate4 and spring4.
here are my files:
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
<display-name>posts</display-name>
<welcome-file-list>
<welcome-file>users.jsp</welcome-file>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:application-context.xml</param-value>
</context-param>
</web-app>
here is the bean where I invoked init() method
package com.posts.beans;
import java.io.Serializable;
import java.util.List;
import javax.annotation.PostConstruct;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
import com.posts.models.Users;
import com.posts.services.UsersService;
#SuppressWarnings("serial")
#Component("Usersbean")
#Scope("session")
public class UsersBean implements Serializable{
#Autowired
private transient UsersService us;
private List<Users> lu;
public UsersBean() {
}
#PostConstruct
public void init(){
lu=us.getAllUsers();
System.out.println("hello");//doesn't shw up=init() doesnt work
}
public String getMyname(){
return "mohamed";
}
public List<Users> getLu() {
return lu;
}
public void setLu(List<Users> lu) {
this.lu = lu;
}
}
here is my jsp file ; I tried to show just one field:
<%# page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%#taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%#taglib uri="http://java.sun.com/jsp/jstl/sql" prefix="sql" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>test list users</title>
</head>
<body>
<jsp:useBean id="users" class="com.posts.beans.UsersBean" />
<table border="1">
<tr><th>id</th><th>nom</th><th>prenom</th><th>login</th><th>password</th></tr>
</table>
<c:forEach var="user" items="${users.lu}">
<p><c:out value="${user.nom}" /></p>
</c:forEach>
</body>
</html>
so the console doesnt show the message "hello" in method init which means that id doesnt work.
maybe it is because that i didnt declare servlet element in web.xm, but i dont have any idea on how it works ..
NB: I tested Services With JUnit, worked fine
i have solved that problem with annotating UserBean class with #Service("userbean") and adding :
<bean id="usersBean" class="com.posts.beans.UsersBean" init-method="init" />
in application-context.xml file ..
when I run my application , i see hibernate generated code of SELECT and the message hello
Hello
Hibernate: select users0_.id as id1_2_, users0_.login as login2_2_, users0_.nom as nom3_2_, users0_.password as password4_2_, users0_.prenom as prenom5_2_ from public.users users0_
" in the console which means that init() method have been executed.
You can make it work in three different ways:
add to your application-context.xml bean that is responsible to work out #PostConstruct annotation:
<bean class="org.springframework.context.annotation.CommonAnnotationBeanPostProcessor" />
add namespase that already has CommonAnnotationBeanPostProcessor inside:
<context:annotation-config />
or
<context:component-scan base-package="package.with.beans" /> <!-- scans components and adds <context:annotation-config /> -->
define init method in the tag bean of your class for argument "init-method"