Spring MVC:Controller RequestMapping工作,但返回总是给出404

Question

我在控制器的方法中有几个SYSOUT,它们出现在控制台日志中......验证我所有的@RequestMapping都按预期运行.环境bean的@Autowiring也在工作(SYSOUT也正确显示).

但是,方法的返回(我使用返回String类型的方法)仅导致404s.找不到*.jsps.项目正在使用Maven; IDE是eclipse kepler,FWIW.

我的ViewResolver是标准的.看不到断开连接.

我的web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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_2_5.xsd">

    <display-name>BluPrint</display-name>

 <servlet>
        <servlet-name>mvc-dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
       <load-on-startup>1</load-on-startup>
   </servlet>

  <servlet-mapping>
        <servlet-name>mvc-dispatcher</servlet-name>
        <url-pattern>/*</url-pattern>
  </servlet-mapping>

  <context-param>
      <param-name>groupId</param-name>
       <param-value>${project.groupId}</param-value>
  </context-param>

    <context-param>
      <param-name>artifactId</param-name>
        <param-value>${project.artifactId}</param-value>
   </context-param>

</web-app>

我的servlet.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:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:jee="http://www.springframework.org/schema/jee"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util"
    xmlns:batch="http://www.springframework.org/schema/batch" xmlns:task="http://www.springframework.org/schema/task"
  xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xjp="http://www.corpabc.com/schema/xjp"
    xsi:schemaLocation="
   http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-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/context http://www.springframework.org/schema/context/spring-context-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/jee http://www.springframework.org/schema/jee/spring-jee-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/util http://www.springframework.org/schema/util/spring-util-3.1.xsd
   http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
   http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd
   http://www.corpabc.com/schema/xjp http://www.corpabc.com/schema/xjp/beans.xsd">

   <context:component-scan base-package="com.corpabc.bluprint" />
 
   <mvc:annotation-driven />
    <mvc:resources mapping="/resources/**" location="/resources/" />
 
   <import resource="classpath:corpabc/xjp/configuration/properties.xml" />

  <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
       <property name="viewClass"
            value="org.springframework.web.servlet.view.JstlView" />
      <property name="prefix" value="/WEB-INF/jsp/" />
     <property name="suffix" value=".jsp" />
  </bean>

 <bean id="dataSourceDB2" class="org.springframework.jndi.JndiObjectFactoryBean">
     <property name="jndiName" value="jdbc/BluPrint" />
       <property name="resourceRef" value="true" />
 </bean>

 <xjp:environment artifactId="${artifactId}" groupId="${groupId}" />

</beans>

我的控制器:

package com.corpabc.bluprint.controllers;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import corpabc.xjp.configuration.env.Environment;

/**
 * 
 * Handles requests for the application.
 */

@Controller
@RequestMapping("/*")
public class BluPrintController {

    @Autowired
    private Environment xjpEnvironment;

    @RequestMapping("/init")
    protected String catchInit(Map<String, Object> model) {
        System.out.println("Got into init method.  XJP Environment: "+xjpEnvironment);
        model.put("xjp", this.xjpEnvironment);
        return "envtest";
    }

    @RequestMapping("/*")
    protected String catchAllOthers(Map<String, Object> model) {
        System.out.println("Got into catch-all method: ");
        return "defaultPage";
    }
}

我envtest.jsp在/WEB-INF/jsp/...但输入网址~localhost:8080/bluprint/init...我得到了404.

我defaultPage.jsp不存在......我希望这里找不到条件,这就是我进入时所得到的~localhost:8080/bluprint/.不知道它是否应该是404,特别是,但这就是我得到的,无论如何.

Answer 1

我怀疑你的问题出在你的servlet映射中./*将通过调度程序servlet强制执行所有操作,包括jsps.试着失去*.我将在servlet规范和更新中找到相关部分....

从servlet规范:

12.2映射的规范在Web应用程序部署描述符中,使用以下语法来定义映射:以"/"字符开头并以"/*"后缀结尾的字符串用于路径映射.

• 以"*"开头的字符串 prefix用作扩展映射.

• 空字符串("")是一个特殊的URL模式,它完全映射到应用程序的上下文根,即表单的请求.在这种情况下,路径信息是'/',servlet路径和上下文路径是空字符串("").

• 仅包含'/'字符的字符串表示应用程序的"默认"servlet.在这种情况下,servlet路径是请求URI减去上下文路径,路径信息为null.

• 所有其他字符串仅用于完全匹配.

因此,如果指定/*覆盖*.jsp映射,那么jsp请求将被路由回调度程序servlet,而不是命中jsp.