spring mvc3.2.2 请求访问不到方法

Question

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>spring</display-name>
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>

    <servlet>
        <servlet-name>spring3mvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    
    <servlet-mapping>
        <servlet-name>spring3mvc</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
    
    <servlet-mapping>
        <servlet-name>spring3mvc</servlet-name>
        <url-pattern>*.jsp</url-pattern>
    </servlet-mapping>
  
</web-app>




spring3mvc-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:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 
                        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
                        http://www.springframework.org/schema/mvc 
                        http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd"
    default-lazy-init="true">
    
    <!-- 启用spring mvc 注解 -->
    <context:annotation-config />
    
    <mvc:default-servlet-handler/>
    
    <!--使Spring支持自动检测组件，如注解的Controller -->
    <context:component-scan base-package="com.xp.web" />

    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"
        p:prefix="/" p:suffix=".jsp" />
        
    <!-- 上传配置  -->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="defaultEncoding" value="UTF-8" />
        <property name="maxUploadSize" value="2147483648" />  <!-- 2G -->
    </bean>
    
    <!-- 启动 Spring MVC 的注解功能，完成请求和注解 POJO 的映射 -->
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
        <property name="messageConverters">
            <list>
                <bean class="org.springframework.http.converter.StringHttpMessageConverter" />
            </list>
        </property>
    </bean>
    
    <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
</beans>


UserLogin.java

package com.xp.web;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping("/user")
public class UserLogin {
    
    @RequestMapping("/login")
    public String login() {
        System.out.println("=======");
        return "login";
    }

}

 
访问：http://localhost:8089/user/login.do，没异常，也没报错，是不是还缺配置项？

Answer 1

DefaultAnnotationHandlerMapping配置需要加上order属性，不然让其他的handler先处理了
[code="java"]



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