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springmvc请求controller报404

springmvc框架请求Controller报404,代码配置如下:

dispatcher-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-3.0.xsd
                          http://www.springframework.org/schema/aop
                          http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
                          http://www.springframework.org/schema/tx
                          http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
                          http://www.springframework.org/schema/context
                          http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 1:对web包中指定包中所有类进行扫描,以完成Bean创建和自动依赖注入的功能 -->
    <context:component-scan base-package="com.controller" />

    <mvc:annotation-driven/>
    <!-- 静态资源访问      需要在头部引入标签路径 -->
    <mvc:resources location="/img/" mapping="/img/**"/>
    <mvc:resources location="/js/" mapping="/js/**" />

    <!-- Resolves views selected for rendering by @Controllers to .jsp resources
            in the /WEB-INF/views directory -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/" />
        <property name="suffix" value=".jsp" />
    </bean>
</beans>

applicationContext.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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

</beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>

    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.html</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.jpg</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.js</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.css</url-pattern>
    </servlet-mapping>

    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/dispatcher-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

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

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

HelloWorldController.java

package com.controller;

import com.bean.User;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;


@Controller
public class HelloWorldController {

    @RequestMapping(value="/test", method=RequestMethod.GET)
    public String test() {
        return "test";
    }

    @RequestMapping("/login")
    public @ResponseBody
    User helloWorld(@RequestParam("typeId") int typeId) {
        User user= new User();
        user.setUsername("zhangsan");
        System.out.println(user);
        return user;
    }
    
    @RequestMapping(value = "/login2", method = RequestMethod.GET)
    @ResponseBody
    public User login2(@RequestParam("typeId") int typeId) {
        User user= new User();
        user.setUsername("lisi");
        System.out.println(user);
        return user;
    }
}

图片描述图片描述

访问路径:http://localhost:8080/FlyPig/…

找了两天了没找到问题,求大神帮忙,跪谢!

回答:

404的问题。。。资源未找到。。。为什么有这个资源(已编辑保存)未找到。。。路径错了或路径写的方式错了

回答:

你的tomcat是怎么配置的?idea启动web项目是在ROOT下,要不试试去掉路径里的/FlyPig?

回答:

你的视图解析器规定的返回视图是.jsp,而你的根路径下的是html文件,

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

再有,你的test控制器返回的视图String是”test”,而你的文件名是”Test”

回答:

你return的是test 应该是在你路径下面有一个test.jsp/test.html

回答:

在test()的return语句前打个断点,看能否进入test方法。如果可以进,说明是retrun “test” 出了问题,你配置文件没有配置 test的页面,如果进不了,说明requestMapping配置路径有问题,检查一下路径名有没有写错或漏写。最后提醒一句return “test” 不是返回一个test的字符串

回答:

我把项目改成Maven创建的springmvc,然后把css,js,image放到WEB-INF下,报红了,这个改怎么解决呢
图片描述

回答:

Spring MVC 资源是配置在WEB-INF下的

回答:

@Controller 也需要配置 @RequestMapping

回答:

楼主问了问题就消失啦,看到这么多人回答一个都没回复,404问题很明了了,直接改上return “你要访问页面的详细地址” 例如webcontent 下的一个test.jsp return “forward:test.jsp”

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