SpringMvc學習第一天
阿新 • • 發佈：2017-12-08
h+ 轉發 play tomcat ctype 第一天 3-9 位置 contex
1.環境搭配：MyEclipse10.7，tomcat9.0 jdk1.8
2.目錄結構：
3.運行效果：
頁面代碼：
web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"> <display-name></display-name> <!-- 配置DispatcherServlet --> <servlet> <servlet-name>springDispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 配置 DispatcherServlet的一個初始化參數:配置SpringMvc 配置文件的位置和名稱--> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <!-- 也可以不通過contextConfigLocation 來配置SpringMvc的配置文件，而使用默認的 默認的配置文件為：/WEB-INF/<servlet-name>-servlet.xml /WEB-INF/springDispatcherServlet-servlet.xml --> <!-- 設置啟動 --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <!-- 請求處理 --> <servlet-name>springDispatcherServlet</servlet-name> <!-- /:應答所有請求 --> <url-pattern>/</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
springmvc.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/tx/spring-mvc-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd"> <!-- 配置自定義掃描包 --> <context:component-scan base-package="como.springmvc.handlers"></context:component-scan> <!-- 配置視圖解析器：如何把handler方法返回值解析為實際的物理視圖 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 前綴 --> <property name="prefix" value="/WEB-INF/views/"></property> <!-- 後綴 --> <property name="suffix" value=".jsp"></property> </bean> </beans>
HelloWorld.java
package como.springmvc.handlers; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller public class HelloWorld { /*1.使用@RequestMapping 註解來映射請求的URL，與index.jsp中的請求一致 2.返回值會通過視圖解析器解析為實際的物理視圖，對於InternalResourceViewResolver視圖解析器 會做如下解析: 通過prefix + returnVal +後綴 這樣的方式得到實際的物理視圖，然後做轉發操作 /WEB-INF/views/+success+.jsp */ @RequestMapping("/helloworld") public String hello(){ System.out.println("hello world"); return "success"; } }
success.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP ‘success.jsp‘ starting page</title> </head> <body> success page. <br> </body> </html>
index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP ‘index.jsp‘ starting page</title> </head> <body> <!--@RequestMapping("/helloworld") --> <a href="helloworld">hello world</a> </body> </html>
前幾天看了一點Spring，現在開始接觸SpringMvc，學的有點急，過程還不是很懂，慢慢來吧。。。。。。
SpringMvc學習第一天