spring mvc学习（8）:springmvc常用注解代码
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spring mvc学习（8）:springmvc常用注解代码
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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"><display-name>SpringMVC01</display-name><!-- 處理中文亂碼 --><filter><filter-name>encodingFilter</filter-name><filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class><init-param><param-name>encoding</param-name><param-value>UTF-8</param-value></init-param></filter><filter-mapping><filter-name>encodingFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping><!-- SpringMVC控制器 --><servlet><servlet-name>dispatcherServlet</servlet-name><!-- 主要就是DispatcherServlet這個(gè)servlet起到分發(fā)的作用，對(duì)請(qǐng)求進(jìn)行控制分發(fā) --><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><!-- 每個(gè)springmvc項(xiàng)目都要一個(gè)springmvc項(xiàng)目配置位置，下面配置springmvc配置文件的路徑 --><param-name>contextConfigLocation</param-name><param-value>/WEB-INF/springMVC-servlet.xml</param-value></init-param><!-- 當(dāng)容器啟動(dòng)時(shí)立即啟動(dòng) --><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>dispatcherServlet</servlet-name><!-- 下面配置springmvc的過(guò)濾分發(fā)請(qǐng)求類(lèi)型，可以是/ 或者*.action等 --><url-pattern>/</url-pattern></servlet-mapping> </web-app>springmvc-servlet
<?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.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsdhttp://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd"><!-- 定義要掃描 controller的包--><context:component-scan base-package="wormday.springmvc.helloworld" /><mvc:default-servlet-handler /><!-- 啟動(dòng)注解驅(qū)動(dòng) SpringMVC 功能 --><mvc:annotation-driven /><!-- 配置視圖解析器 如何把handler 方法返回值解析為實(shí)際的物理視圖 --><!--指定視圖解析器--><bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"><!-- 視圖的路徑 --><property name="prefix" value="/WEB-INF/"/><!-- 視圖名稱(chēng)后綴 --><property name="suffix" value=".jsp"/></bean></beans>HIcontroller類(lèi)
package wormday.springmvc.helloworld;import org.springframework.stereotype.Controller; import org.springframework.ui.Model; // 這里導(dǎo)入了一個(gè)Model類(lèi) import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod;@Controller @RequestMapping("/hi") public class HiController {@RequestMapping("/say")public String say(Model model) { // 參數(shù)中傳入Modelmodel.addAttribute("name","wormday"); // 指定Model的值model.addAttribute("url","http://www.cnblogs.com/wormday/p/8435617.html"); // 指定Model的值return "say";}@RequestMapping("/loginForm")public String loginForm(){return "login";}@RequestMapping("/hi")public String loginFor(){return "hi";}@RequestMapping(value = "/login",method = RequestMethod.POST)public String loginXS(){// System.out.println("執(zhí)行登錄");//System.out.println("username"+username);//System.out.println("password"+password);return "redirect:hi";} }say.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head><title>Title</title> </head> <body> hello world,${name} <br/>${url}</body> </html>復(fù)制代碼login.jsp
<%--Created by IntelliJ IDEA.User: geyaoDate: 2019/11/6Time: 19:57To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head><title>Title</title> </head> <body> <form action="hi" method="post"><label for="username">用戶(hù)名<input type="text" id="username" name="username"></label><label for="password">密碼<input type="text" id="password" name="password"></label><button>登錄</button> </form> </body> </html>hi.jsp
<%--Created by IntelliJ IDEA.User: geyaoDate: 2019/11/6Time: 20:17To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head><title>Title</title> </head> <body> 我是歌謠，登錄成功 </body> </html>運(yùn)行結(jié)果
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