Spring Hibernate integration with maven and mysql - spring

Question

I need to have a project with spring hibernate and mysql, the homepage works fine (it even gets data out from mysql and displays it) but when i click the add/edit or delete button i get a 404 error with the description The request sent by the client was syntactically incorrect.
My student Controller.java
package com.joseph.controller;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import com.joseph.model.Student;
import com.joseph.service.StudentService;
#Controller
public class StudentController {
#Autowired
private StudentService studentService;
#RequestMapping("/index")
public String setupForm(Map<String, Object> map){
Student student = new Student();
map.put("student", student);
map.put("studentList", studentService.getAllStudent());
return "student";
}
#RequestMapping(value="/student.do", method=RequestMethod.POST)
public String doActions(#ModelAttribute Student student, BindingResult result, #RequestParam String action, Map<String, Object> map){
// System.out.println("inside doAction");
Student studentResult = new Student();
// System.out.println("after student object");
switch(action.toLowerCase()){//only in Java7 you can put String in switch
case "add":
studentService.add(student);
studentResult = student;
System.out.println("Inside case action value is - add");
break;
case "edit":
studentService.edit(student);
studentResult = student;
System.out.println("Inside case action value is - edit");
break;
case "delete":
studentService.delete(student.getStudentId());
studentResult = new Student();
System.out.println("Inside case action value is - delete");
break;
case "search":
Student searchedStudent = studentService.getStudent(student.getStudentId());
studentResult = searchedStudent!=null ? searchedStudent : new Student();
System.out.println("Inside case action value is - search");
break;
}
System.out.println("after switch");
map.put("student", studentResult);
map.put("studentList", studentService.getAllStudent());
return "student";
}}
My web.xml file is
<?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_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>CRUDWebAppMavenized</display-name>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath:log4j.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>spring1</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>spring1</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<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>
My spring servlet.xml file
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee" xmlns:lang="http://www.springframework.org/schema/lang"
xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
<context:annotation-config />
<context:component-scan base-package="com.joseph" />
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
p:location="/WEB-INF/jdbc.properties" />
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close" p:driverClassName="${jdbc.driverClassName}"
p:url="${jdbc.databaseurl}" p:username="${jdbc.username}" p:password="${jdbc.password}" />
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation">
<value>classpath:hibernate.cfg.xml</value>
</property>
<property name="configurationClass">
<value>org.hibernate.cfg.AnnotationConfiguration</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${jdbc.dialect}</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
<tx:annotation-driven />
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
My spring1-servlet.xml file is
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee" xmlns:lang="http://www.springframework.org/schema/lang"
xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
<context:annotation-config />
<context:component-scan base-package="com.joseph" />
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
p:location="/WEB-INF/jdbc.properties" />
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close" p:driverClassName="${jdbc.driverClassName}"
p:url="${jdbc.databaseurl}" p:username="${jdbc.username}" p:password="${jdbc.password}" />
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation">
<value>classpath:hibernate.cfg.xml</value>
</property>
<property name="configurationClass">
<value>org.hibernate.cfg.AnnotationConfiguration</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${jdbc.dialect}</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
<tx:annotation-driven />
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
My student.jsp is
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%# include file="/WEB-INF/jsp/includes.jsp"%>
<!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>Student Management</title>
</head>
<body>
<h1>Students Data</h1>
<form:form action="student.do" method="POST" commandName="student">
<table>
<tr>
<td>Student ID</td>
<td><form:input path="studentId" /></td>
</tr>
<tr>
<td>First name</td>
<td><form:input path="firstname" /></td>
</tr>
<tr>
<td>Last name</td>
<td><form:input path="lastname" /></td>
</tr>
<tr>
<td>Year Level</td>
<td><form:input path="yearLevel" /></td>
</tr>
<tr>
<td colspan="2">
<input type="submit" name="action1" value="Add" />
<input type="submit" name="action2" value="Edit" />
<input type="submit" name="action3" value="Delete" />
<input type="submit" name="action4" value="Search" />
</td>
</tr>
</table>
</form:form>
<br>
<table border="1">
<th>ID</th>
<th>First name</th>
<th>Last name</th>
<th>Year level</th>
<c:forEach items="${studentList}" var="student">
<tr>
<td>${student.studentId}</td>
<td>${student.firstname}</td>
<td>${student.lastname}</td>
<td>${student.yearLevel}</td>
</tr>
</c:forEach >
</table>
</body>
</html>
Any help with this guys ?! I mean its able to connect to the database perectly fine i have no clue why the buttons are not working

Answer 1

I see following two problems:
First Issue:
In your controller, you use
#RequestMapping(value="/student.do", method=RequestMethod.POST)
but in your form you use
<form:form action="student.do" method="POST" commandName="student">
Shouldn't your form also use /student.do? Only reason I suspect this is because you have indicated that you get 404 (Page not found) error on trying to add/update.
Second Issue:
You use four submit buttons each with its own name
<input type="submit" name="action1" value="Add" />
<input type="submit" name="action2" value="Edit" />
<input type="submit" name="action3" value="Delete" />
<input type="submit" name="action4" value="Search" />
but, your controller method's #RequestParam assumes that you will get the value in one param.
public String doActions(#ModelAttribute Student student,
BindingResult result,
#RequestParam String action, //***THIS IS WRONG****
Map<String, Object> map){
First you should change it have a name:
#RequestParam("action") String action,
and, second add a hidden field (<input type="hidden" name="action" />) to carry the value of action to server and make sure that you update its value to "Add", "Edit", "Delete" or "Search" using Java Script by attaching on-click handlers to four action buttons.
Third Possible Cause of Concern:
Try to get rid of second dispatcher servlet, and use only one if possible. So, make the default one handle *.do as some people have faced issues when using two dispatcher servlet. I am sure it can be made to work but its difficult to pinpoint the error remotely using SO.
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
and, have all your #RequestMapping use .do, eg: index.do and student.do
This answer is based on what I can make out from the question.