web.xml
<servlet>
<servlet-name>springMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:spring/*.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
controller
#Controller
#RequestMapping("/car/*")
public class CarController extends BaseController {
#RequestMapping("baojia.html")
public ModelAndView baojia() {
ModelAndView view = new ModelAndView();
view.setViewName("baojia");
return view;
}
when i visit http://mydomain/car/baojia.html and has this error:
[carloan]2016-04-21 09:01:31,177 WARN [org.springframework.web.servlet.PageNotFound] - <No mapping found for HTTP request with URI [/views/baojia.jsp] in DispatcherServlet with name 'springMVC'>
spring.xml ViewResolver
<bean id="ViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="cache" value="false"/>
<property name="contentType" value="text/html;charset=UTF-8" />
<property name="prefix" value="/views/"/>
<property name="suffix" value=".jsp"/>
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
</bean>
and i have file in /views/boajia.jsp
whether i writer, it don't work
<mvc:resources mapping="/views/" location="/views/**" />
and i have another question, i wan't to matching this url-pattern: /api/*
and the controller is:
#Controller
#RequestMapping("/api/*")
public class CarApiController extends BaseController {
#RequestMapping("get")
#ResponseBody
public JsonResult getCars()
but it can't work
try #RequestMapping("/car") instead of #RequestMapping("/car/*")
And check below two links to understand, how request mapping defined.
can anybody explain me difference between class level controller and method level controller..?
http://duckranger.com/2012/04/advanced-requestmapping-tricks-controller-root-and-uri-templates/
URL mapping declaration is not proper use #RequestMapping("/car") and #RequestMapping("/baojia.html")
Related
My web.xml states dispatcher-servlet url pattern as:
<!-- root context -->
<servlet>
<servlet-name>appServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
</init-param>
</servlet>
<!-- admin context -->
<servlet>
<servlet-name>adminServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/appServlet/admin-context.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>appServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>adminServlet</servlet-name>
<url-pattern>/admin/</url-pattern>
</servlet-mapping>
two servlet-mapping files are described as
<!--servlet-context.xml for appServlet-->
<annotation-driven />
<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/view/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
<!--admin-context.xml for adminServlet-->
<annotation-driven />
<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/view/admin/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
and I coded two controllers for the test. one is ok but the other met "error"
#Controller("admin.IndexController")
#RequestMapping("/admin")
public class AdminIndexController {
#RequestMapping(value = "/", method = RequestMethod.GET)
public String home(Locale locale, Model model) {
...
return "index";
//I thought this location will be /myContext/WEB-INF/view/admin/index.jsp
//and it run well
}
}
but the following controller couldn't find it's next page.
#Controller
#RequestMapping("/admin")
public class AddCategoryController {
#RequestMapping(value={"/category/add"}, method=RequestMethod.GET)
public String form(Model model){
...
return "addCategory";
//I thought the location will be /myContext/WEB-INF(/view/admin/category/)index.jsp
//but Spring forwarded to /myContext/WEB-INF/view/addCategory.jsp
}
}
if I write the code as "return admin/index;" this has no problem.
But I think AddCategoryController has to be handled by adminServlet and admin-context.xml.
Because AddCategoryController calls addCategory.jsp as the way of relative path, so they both should be on the same path. but I met fail... Can you tell me what is wrong?
You can achieve everything by registering servlet only once. Do not know why you are registering DispatcherServlet twice. You can give the root jsp folder path like "/WEB-INF/view/ and then in code you can move to different jsps in subfolders like /admin/index.jsp
I have the following code as
controller
#Controller
public class ProductController {
#RequestMapping("/products")
public String list(Model model) {
Product iphone = new Product("P1233", "iPhone 5s", new BigDecimal(500));
iphone.setDescription("pple iPhone 5s smartphone with 4.00-inch 640x1136 display and 8-megapixel rear camera");
iphone.setCategory("smart phone");
iphone.setManfactuer("Apple");
iphone.setUnitsInStock(1000);
model.addAttribute("product", iphone);
return "products";
}
product
private String productId;
private String name;
private BigDecimal unitPrice;
private String description;
private String manfactuer;
private String category;
private long unitsInStock;
private long uintsInOrder;
private boolean discountinued;
//getter and setter
now when I try to fetch value in jsp as:
<h3>${product.name}</h3>
<p>${product.description}</p>
<p>${product.unitPrice}USD</p>
<p>Available ${product.unitsInStock} units in stock</p>
web.xml
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
dispatcherServlet-servlet.xml
<mvc:annotation-driven />
<context:component-scan base-package="com.*" />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/view/" />
<property name="suffix" value=".jsp" />
</bean>
not getting any output in browser but when I change mapping to / instead of /products and loadOnStartUp to 1 for dispatcher servlet, everything is fine.
Is there any way to get values without mapping directly to dispatcherServlet as if I have more #controller classes then IDK, how to manage this?
EDIT
I have two controllers one is
#RequestMapping("/")
public String welcome(Model model) {
model.addAttribute("greeting", "Greetings of the day");
model.addAttribute("tagline", "this is the tagline");
return "welcome";
}
working fine and when i use this configuration not getting output in browser but when I change to
#RequestMapping("/")
public String list(Model model) {
Product iphone = new Product("P1233", "iPhone 5s", new BigDecimal(500));
iphone.setDescription("pple iPhone 5s smartphone with 4.00-inch 640x1136 display and 8-megapixel rear camera");
iphone.setCategory("smart phone");
iphone.setManfactuer("Apple");
iphone.setUnitsInStock(1000);
model.addAttribute("product", iphone);
return "products";
}
giving me output , but I want to use #RequestMapping("/products) , How to do that?
You have configured ViewResolver?
For example:
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/views/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
配置 web.xml
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:spring/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<url-pattern>/</url-pattern>
你需要配置注解扫描包路径，及对应的视图解析器
<context:component-scan base-package="com.group.springmvc.controller" />
<mvc:annotation-driven enable-matrix-variables="true"/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/" />
<property name="suffix" value=".jsp" />
</bean>
I have created a mapping in web.xml something like this:
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/about/*</url-pattern>
</servlet-mapping>
In my controller I have something like this:
import org.springframework.stereotype.Controller;
#Controller
public class MyController{
#RequestMapping(value="/about/us", method=RequestMethod.GET)
public ModelAndView myMethod1(ModelMap model){
//some code
return new ModelAndView("aboutus1.jsp",model);
}
#RequestMapping(value="/about", method=RequestMethod.GET)
public ModelAndView myMethod2(ModelMap model){
//some code
return new ModelAndView("aboutus2.jsp",model);
}
}
And my dispatcher-servlet.xml has view resolver like:
<mvc:annotation-driven/>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:viewClass="org.springframework.web.servlet.view.JstlView"
p:prefix="/WEB-INF/jsp/"
p:suffix=".jsp"/>
To my surprise: request .../about/us is not reaching to myMethod1 in the controller. The browser shows 404 error. I put a logger inside the method but it isn't printing anything, meaning, its not being executed.
.../about works fine! What can be the done to make .../about/us request work? Any suggestions?
You need to use #RequestMapping(value="/us", method=RequestMethod.GET) or you need to request about/about/us
Since you have mapped "/about" in your web.xml, the url it will pass will be like this www.xyz.com/about/*
As your configuration says it will work for
www.xyz.com/about/about/us
www.xyz.com/about/about
In order to to work properly either use
/* in web.xml instead of /about
or change the controller's endpoint to
#RequestMapping(value="/us", method=RequestMethod.GET)
#RequestMapping(value="/", method=RequestMethod.GET)
Okay I got the thing working, here are things I added in the dispatcher-servlet.xml:
<bean
class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
<property name="alwaysUseFullPath" value="true" />
</bean>
<bean
class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="alwaysUseFullPath" value="true" />
</bean>
I am new to spring web mvc framework,and I use struts 2 before.
I create a new dynamic web project using eclipse EE,and add all the jars to the /web-info/lib.
The whole hierarchy of the project is like this:
SpringMVCTest
WEB-INF
web.xml
example-servlet.xml
jsp
hello.jsp
lib
xxxx.jars
.....
This is the servlet definition:
<servlet>
<servlet-name>example</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>example</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
This is the example-servlet.xml:
<context:component-scan base-package="com.kk.web.controllers" />
<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>
And the controller:
package com.kk.web.controllers;
#Controller("example")
#RequestMapping("/example")
public class ExampleController {
#RequestMapping("/hello")
#ResponseBody
public String hello() {
return "hello";
}
#RequestMapping("/hello_jsp")
public ModelAndView hello_jsp(){
ModelAndView mv=new ModelAndView("hello");
mv.addObject("message", "welcome");
return mv;
}
}
It worked when I run:
http://localhost:8080/SpringMVCTest/example/hello
But when I run:
http://localhost:8080/SpringMVCTest/example/hello_jsp
I got the warn:
2011-10-17 10:36:15 org.springframework.web.servlet.DispatcherServlet noHandlerFound
Warn: No mapping found for HTTP request with URI [/SpringMVCTest/WEB-INF/jsp/hello.jsp] in DispatcherServlet with name 'example'
It seems that the ExampleController works,it dispatch the request "/example/hello_jsp" to the right view "jsp/hello.jsp".
But then the spring take the file dispatch "/jsp/hello.jsp" as another request,then it will not find the matched url mapping in the "example" controller.
Why?? IMO,a requst must come from the client to server,the controller receive only one request here "/exmaple/hello_jsp",isn't it?
And How to fix it?
BTW,I can set the url pattern to "/*.xxx",but I do not want the suffix in the url.
Any ideas?
Previous answer did not work...
This posting looks similar: http://forum.springsource.org/showthread.php?55982-No-mapping-found-for-HTTP-request-with-MVC-requests
Summary: change
<servlet-mapping>
<servlet-name>example</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
to
<servlet-mapping>
<servlet-name>example</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
and checking my latest Spring MVC app I use the latter pattern (no * on the end).
I have a webapp based on Spring 3.0.6 which works fine on Tomcat 7.0.
The web.xml defines the dispatcher as following:
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
The dispatcher defines the view resolver in the usual way:
<bean id="tilesViewResolver"
class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.tiles2.TilesView" />
</bean>
<bean id="tilesConfigurer"
class="org.springframework.web.servlet.view.tiles2.TilesConfigurer">
<property name="definitions">
<list>
<value>/WEB-INF/tiles-def.xml</value>
</list>
</property>
</bean>
I have a controller annotated with #RequestMapping("/home") and a "home" view defined in tiles-def.xml. When I point my browser to the /myapp/home.html, the Tiles page is opened.
If I add <mvc:resources mapping="/resources/**" location="/resources/" /> or <mvc:view-controller path="/" view-name="home.html"/> to my dispatcher xml file, pointing the browser to /myapp/home.html results in a 404. The log says:
21:34:22,128 WARN PageNotFound:947 – No mapping found for HTTP request with URI [/myapp/home.html] in DispatcherServlet with name 'dispatcher'
What am I doing wrong?
Thanks a lot
The problem in my application was due to the automatic view name resolution. My annotated method in my #Controller returned void, and the framework tried to guess the tiles view name using the request path.
I modified my annotated method as following, returning a String:
#RequestMapping(value="/page", method = RequestMethod.GET)
public String showForm(HttpServletRequest request, Model model) {
// TO BUSINESS LOGIC
// return tiles view name as configured in 'tiles-def.xml'
return "my_tiles_view_name";
}
With this change, everything works fine.