1.Controller中的业务方法的POJO参数的属性名与请求参数一致，参数值会自动映射匹配
1.创建POJO类
public class User {private String username;private int age;public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}@Overridepublic String toString() {return "User{" +"username='" + username + '\'' +", age=" + age +'}';}
2.编写controller层
@RequestMapping("/report12")@ResponseBodypublic void save12(User user){System.out.println(user);}
3.spring-mvc配置文件
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="/schema/beans"xmlns:xsi="/2001/XMLSchema-instance"xmlns:mvc="/schema/mvc"xmlns:context="/schema/context"xsi:schemaLocation="/schema/beans /schema/beans/spring-beans.xsd/schema/context /schema/context/spring-context.xsd/schema/mvc /schema/mvc/spring-mvc.xsd"><!-- 扫描controller包下得类--><context:component-scan base-package="com.hao.controller"/><!-- 配置内部资源视图解析器--><bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="/jsp/"></property><property name="suffix" value=".jsp"></property></bean><!--注解驱动--><mvc:annotation-driven/></beans>
4.web.xml
<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="/2001/XMLSchema-instance"xmlns="/xml/ns/javaee"xsi:schemaLocation="/xml/ns/javaee /xml/ns/javaee/web-app_3_0.xsd"id="WebApp_ID" version="3.0"><!-- 配置springMVC的核心配置控制器DispatcherServlet--><servlet><servlet-name>DispatcherServlet</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring-mvc.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>DispatcherServlet</servlet-name><url-pattern>/</url-pattern></servlet-mapping><!-- 配置监听器--><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!-- 全局初始化参数,告诉配置文件路径--><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContext.xml</param-value></context-param></web-app>
5.浏览器访问http://localhost:8080/report12?username=zsh&age=20
6.结果
