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SpringMVC获取请求参数-POJO类型参数
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SpringMVC获取请求参数-POJO类型参数
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1.Controller中的業務方法的POJO參數的屬性名與請求參數一致,參數值會自動映射匹配
1.創建POJO類
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.編寫controller層
@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="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:mvc="http://www.springframework.org/schema/mvc"xmlns:context="http://www.springframework.org/schema/context"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsdhttp://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"><!-- 掃描controller包下得類--><context:component-scan base-package="com.hao.controller"/><!-- 配置內部資源視圖解析器--><bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="/jsp/"></property><property name="suffix" value=".jsp"></property></bean> <!--注解驅動--><mvc:annotation-driven/> </beans>4.web.xml
<?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_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><!-- 配置監聽器--><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!-- 全局初始化參數,告訴配置文件路徑--><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContext.xml</param-value></context-param> </web-app>5.瀏覽器訪問http://localhost:8080/report12?username=zsh&age=20
6.結果
總結
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