SpringMVC的简单示例

首先导入所需的jar包，项目目录结构如下：之后需要配置一下web.xml文件，内容如下：<？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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
<servlet>
<servlet-name>springDispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.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>
</web-app>然后配置applicationContext.xml:<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
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-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <！-- 配置自动扫描的包 -->
<context:component-scan base-package="com.sprmvc.po"></context:component-scan>
<！-- 配置视图解析器将HelloWorldController中的返回值解析为实际的物理视图 -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<！-- prefix为前缀,suffix为后缀 -->
<property name="prefix" value="/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>下面开始建立实体类User.java:package com.sprmvc.po;public class User {
private String userName;
private String password;
public String getUserName（） {
return userName;
}
public void setUserName（String userName） {
this.userName = userName;
}
public String getPassword（） {
return password;
}
public void setPassword（String password） {
this.password = password;
}
}然后是控制层代码：package com.sprmvc.po;import javax.servlet.http.HttpServletRequest;import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;@Controller
public class HelloWorldController {
@RequestMapping（value="/hello",method = RequestMethod.GET）
public String printHelloWorld（HttpServletRequest request,User user） {
request.setAttribute（"userName", user.getUserName（））;
request.setAttribute（"password", user.getPassword（））;
return "hello";
}
}这里的value即访问路径，而return的"hello"通过applicationContext.xml中配置的视图解析器会返回到hello.jsp中接下来我们建立两个.jsp页面，首先是index.jsp:<body>
<form method="get" action="hello">
用户名：<input type="text" name="userName">
密码：<input type="password" name="password"><br>
<input type="submit" value="提交">
</form>
</body>这里的method和action分别与控制层中的method和value的值相对应，即HelloWorldController.java中的第11行。然后是hello.jsp:1 <body>2 <h1>操作成功了</h1>3 您的用户名为：${userName}<br>4 您的密码为：${password }5 </body>这样只需要将项目加载到tomcat下就可以进行访问了，赶快试试吧。SpringMVC＋MyBatis集成配置 http://www.linuxidc.com/Linux/2016-09/135212.htmSpringMVC总结篇 http://www.linuxidc.com/Linux/2016-06/132659.htmSpring+SpringMVC企业快速开发架构搭建 http://www.linuxidc.com/Linux/2015-09/122942.htmSpringMVC的乱码处理 http://www.linuxidc.com/Linux/2015-07/120542.htmSpring MVC+Spring3+Hibernate4开发环境搭建 http://www.linuxidc.com/Linux/2013-07/87119.htmSpring MVC整合Freemarker基于注解方式 http://www.linuxidc.com/Linux/2013-02/79660.htm基于注解的Spring MVC简单介绍 http://www.linuxidc.com/Linux/2012-02/54896.htmSpringMVC详细示例实战教程 http://www.linuxidc.com/Linux/2015-06/118461.htmSpring MVC 框架搭建及详解 http://www.linuxidc.com/Linux/2012-01/52740.htmSpringMVC 异常处理 http://www.linuxidc.com/Linux/2015-06/119049.htmSpringMVC框架入门配置 IDEA下搭建Maven项目 http://www.linuxidc.com/Linux/2016-09/134918.htm本文永久更新链接地址：http://www.linuxidc.com/Linux/2016-11/137145.htm