SpringMVC映射器,逻辑视图名及自定义springmvc.xml路径

时间: 2020-09-19｜32次围观｜0 条评论

目录结构

SpringMVC映射器,逻辑视图名及自定义springmvc.xml路径插图

操作流程

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.springapp</groupId>
    <artifactId>SpringMVC002</artifactId>
    <packaging>war</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>SpringMVC002</name>

    <properties>
        <spring.version>3.2.0.RELEASE</spring.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.1</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.8.2</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <finalName>SpringMVC002</finalName>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-surefire-plugin</artifactId>
                <configuration>
                    <includes>
                        <include>**/*Tests.java</include>
                    </includes>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

hello.jsp

<%@ page language="java" pageEncoding="UTF-8" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
    <body>
        hello.jsp<br/>
        成功<br/>
        request:${requestScope.massage}<br/>
        request:${requestScope.hello}<br/>
    </body>
</html>

UserAction.java

package com.springapp.mvc;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


/** * * 控制器 * Created by liguodong on 2015/11/17. */
public class UserAction implements Controller {


    @Override
    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        System.out.println("增加用户");
        ModelAndView modelAndView = new ModelAndView();
        modelAndView.addObject("massage","增加用户成功");
        modelAndView.addObject("hello","world");
        modelAndView.setViewName("hello");
       //modelAndView.setViewName("/WEB-INF/pages/hello.jsp");
        return modelAndView;
    }
}

web.xml

<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

    <display-name>Spring MVC Application</display-name>


    <!--注册SpringMVC的核心控制器-->
    <servlet>
        <servlet-name>mvc-dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <!--通知DispatcherServlet去指定的目录下加载springmvc.xml-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value >WEB-INF/mvc-dispatcher-servlet.xml</param-value>
            <!--<param-value >classpath:springmvc.xml</param-value>-->
        </init-param>

        <!--启动时加载-->
        <!--<load-on-startup>1</load-on-startup>-->
    </servlet>

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


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

    <welcome-file-list>
        <welcome-file>emp.jsp</welcome-file>
    </welcome-file-list>

</web-app>

mvc-dispatcher-servlet.xml

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 注册Action class表示处理类的全路径 name表示请求路径 必选 -->
    <bean name="/add.action" class="com.springapp.mvc.UserAction"></bean>

    <bean name="/update.action" class="com.springapp.mvc.UserAction"></bean>
    <bean name="/delete.action" class="com.springapp.mvc.UserAction"></bean>
    <bean name="/find.action" class="com.springapp.mvc.UserAction"></bean>


    <!-- 映射器 BeanNameUrlHandlerMapping表示将bean标签的name属性当做URL请求 可选 -->
    <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>



    <!-- 适配器 SimpleControllerHandlerAdapter表示用于寻找实现了Controller接口的Action类 可选 -->
    <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"></bean>


    <!-- 视图解析器 InternalResourceViewResolver表示通过ModelAndView对象中封装的视图名找到真正的页面 可选 如果Action中书写的视图逻辑名称，那么视图解析器就必须配置。 如果Action中书写的视图真实名称，那么视图解析器就可选配置。 真实路径 = 前缀+视图罗继名+后缀 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

emp.jsp

<%@ page language="java" pageEncoding="UTF-8" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
    <head>
        <title>映射器</title>
        <style type="text/css"> .no_underline{ text-decoration:none } </style>
    </head>
    <body>
        <a href="${pageContext.request.contextPath}/add.action" class="no_underline">增加用户</a>
        <hr/>
        <a href="${pageContext.request.contextPath}/update.action">修改用户</a><br/>
        <a href="${pageContext.request.contextPath}/delete.action">删除用户</a><br/>
        <a href="${pageContext.request.contextPath}/find.action">查询用户</a><br/>
    </body>
</html>

设置初始打开界面

SpringMVC映射器,逻辑视图名及自定义springmvc.xml路径插图1

SpringMVC映射器,逻辑视图名及自定义springmvc.xml路径插图2

逻辑视图名

SpringMVC映射器,逻辑视图名及自定义springmvc.xml路径插图3

SpringMVC映射器,逻辑视图名及自定义springmvc.xml路径插图4

两种映射器

BeanNameUrlHandlerMapping(核心)
SimpleUrlHandlerMapping(适用于将多个请求映射到同一个路径)

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 注册Action class表示处理类的全路径 name表示请求路径 必选 -->
    <bean name="/add.action" class="com.springapp.mvc.UserAction"></bean>

    <!--映射器（BeanNameUrlHandlerMapping表示将bean标签的name属性当做URL请求）-->
    <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>



    <bean id="userActionID" class="com.springapp.mvc.UserAction"></bean>

   <!-- 映射器(适合于将多个请求，映射到同一个Action) -->
    <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>
                <!--key表示请求路径-->
                <prop key="/update.action">userActionID</prop>
                <prop key="/delete.action">userActionID</prop>
                <prop key="/find.action">userActionID</prop>
            </props>
        </property>

    </bean>


    <!--<bean name="/update.action" class="com.springapp.mvc.UserAction"></bean> <bean name="/delete.action" class="com.springapp.mvc.UserAction"></bean> <bean name="/find.action" class="com.springapp.mvc.UserAction"></bean> -->
    <!-- 映射器 BeanNameUrlHandlerMapping表示将bean标签的name属性当做URL请求 可选 -->
    <!--<bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>-->


    <!-- 适配器 SimpleControllerHandlerAdapter表示用于寻找实现了Controller接口的Action类 可选 -->
    <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"></bean>


    <!-- 视图解析器 InternalResourceViewResolver表示通过ModelAndView对象中封装的视图名找到真正的页面 可选 如果Action中书写的视图逻辑名称，那么视图解析器就必须配置。 如果Action中书写的视图真实名称，那么视图解析器就可选配置。 真实路径 = 前缀+视图罗继名+后缀 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

SpringMVC映射器,逻辑视图名及自定义springmvc.xml路径插图5

SpringMVC映射器,逻辑视图名及自定义springmvc.xml路径插图6

自定义springmvc.xml路径

SpringMVC映射器,逻辑视图名及自定义springmvc.xml路径插图7

SpringMVC映射器,逻辑视图名及自定义springmvc.xml路径插图8

原文链接：https://blog.csdn.net/scgaliguodong123_/article/details/49886143

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