我正在使用带有注释控制器的 SpringMVC 3。我成功地将我的 URL ("/HelloWorld) 映射到一个控制器并定义了它的 GET 处理方法。
错误是在输入(App)/HelloWorldURL 时，我的网络服务器（GlassFish）给出了这个错误：
请求的资源不可用。
但在 GlassFish 日志中，我看到 URL 已安装。
映射"{[/HelloWorld],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView controllers.HelloWorldController.processHelloWorld()
我的文件：
(1)HelloWorldController.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package controllers;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
/**
*
* @author */
@Controller
@RequestMapping("/HelloWorld")
public class HelloWorldController {
@RequestMapping(method = RequestMethod.GET)
public ModelAndView processHelloWorld()
{
ModelAndView model = new ModelAndView("HelloWorldPage");
model.addObject("msg", "Expanded string - hello world");
return model;
}
}
(2) Dispatcher-Servlet.xml。请注意 MVC-Annotation-Driven 方法。未使用 indexController。
<?xml version="1.0" encoding="UTF-8"?>
<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"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<context:component-scan base-package="controllers" />
<mvc:annotation-driven />
<!--
Most controllers will use the ControllerClassNameHandlerMapping above, but
for the index controller we are using ParameterizableViewController, so we must
define an explicit mapping for it.
-->
<bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="index.htm">indexController</prop>
</props>
</property>
</bean>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/jsp/"
p:suffix=".jsp" />
<!--
The index controller.
-->
<bean name="indexController"
class="org.springframework.web.servlet.mvc.ParameterizableViewController"
p:viewName="index" />
</beans>
(3)HelloWorldPage.jsp：
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<html>
<body>
<h1>Spring MVC Hello World Annotation Example</h1>
<h2>${msg}</h2>
</body>
</html>
任何想法为什么找不到 URL“/HelloWorld”？谢谢。