eclipse配置springMVC

基础还是创建一个Dynamic web project.

WEB-INF/lib中添加必需的jar。

commons-logging-1.1.3.jar
spring-aop-4.3.6.RELEASE.jar
spring-beans-4.3.6.RELEASE.jar
spring-context-4.3.6.RELEASE.jar
spring-core-4.3.6.RELEASE.jar
spring-expression-4.3.6.RELEASE.jar
spring-web-4.3.6.RELEASE.jar
spring-webmvc-4.3.6.RELEASE.jar

这些jar在spring中都有。

配置web.xml

    <servlet>
        <servlet-name>springDispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- 配置Spring mvc下的配置文件的位置和名称 -->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    
    <servlet-mapping>
        <servlet-name>springDispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

src下创建springmvc.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: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.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
        
        
        <!-- 配置自动扫描的包 -->
        <context:component-scan base-package="com.awu.springmvc">
        </context:component-scan>
        
        <!-- 配置视图解析器 如何把handler 方法返回值解析为实际的物理视图 -->
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name = "prefix" value="/WEB-INF/views/"></property>
            <property name = "suffix" value = ".jsp"></property>
        </bean>
</beans>

Tip：<context:component-scan base-package="com.awu.springmvc"> 中为相应controllers的package目录。

bean中配置的为views的解析目录。

示例代码：

package com.awu.springmvc.handlers;

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

@Controller
public class Helloworld {
	@RequestMapping("/helloworld")
	public String hello(){
		System.out.println("hello world");
		return "success";
	}
}

返回字符串为“success”，那么在配置文件指定的目录下（views）创建同名jsp文件：success.jsp。