参数方法名称解析器

1.配置依赖包

<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">
    <parent>
        <artifactId>SpringMVC</artifactId>
        <groupId>cn.happy</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>SpringMVC03ViewResolver</artifactId>
    <packaging>war</packaging>
    <name>SpringMVC03ViewResolver Maven Webapp</name>
    <url>http://maven.apache.org</url>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <!--spring对应的版本号-->
        <spring.version>4.2.1.RELEASE</spring.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.0</version>
            <scope>test</scope>
        </dependency>
        <!--引入需要的spring 核心jar-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-expression</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!--引入需要的jstl jar-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
    </dependencies>
    <build>
        <finalName>SpringMVC03ViewResolver</finalName>
    </build>
</project>

　　2.配置中央调度器(web.xml）

<!DOCTYPE web-app PUBLIC
        "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
        "http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
    <display-name>Archetype Created Web Application</display-name>
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-controller.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

还有一个视图解析器——BeanNameViewResolver

　　3.配置处理器映射器(Spring-controller.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">
    <!--映射器-->
    <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>
                <prop key="/hello.do">myPropertiesController</prop>
            </props>
        </property>
    </bean>
    <!--视图解析器：XmlViewResolver-->
    <bean class="org.springframework.web.servlet.view.XmlViewResolver">
        <property name="location" value="classpath:myView.xml"/>
    </bean>
    <!--参数方法名称解析器-->
    <bean id="parameterMethodNameResolver"
          class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver">
        <property name="paramName" value="actionName"/>
    </bean>
    <!--控制器配置-->
    <bean id="myPropertiesController" class="cn.happy.controller.MyMultiController">
        <property name="methodNameResolver" ref="parameterMethodNameResolver"/>
    </bean>
</beans>

　　4.配置视图解析器（MyView.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">
    <!--外部资源视图对象-->
    <bean id="jd" class="org.springframework.web.servlet.view.RedirectView">
        <property name="url" value="https://www.jd.com"/>
    </bean>
    <!--内部资源视图对象-->
    <bean id="internal" class="org.springframework.web.servlet.view.JstlView">
        <property name="url" value="/second.jsp"/>
    </bean>
</beans>

　　5.处理器（MyMultiController）

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.multiaction.MultiActionController;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class MyMultiController extends MultiActionController {
    public String doFirst(HttpServletRequest request, HttpServletResponse response) {
        System.out.println("doFirst");
        return "jd";
    }
public ModelAndView doSecond(HttpServletRequest request, HttpServletResponse response) {
        System.out.println("doSecond");
        return new ModelAndView("internal");
    }
}

　　6.视图（second.jsp）

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<h2>doSecond</h2>
</body>
</html>