servlet输出html
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servlet输出html
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我们可以将servlet看作是嵌套了html代码的java类
package com.atchina.servlet;import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.io.PrintWriter;@WebServlet(name = "HelloWorldServlet") public class HelloWorldServlet extends HttpServlet {protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {}protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {response.setContentType("text/html;charset=UTF-8");request.setCharacterEncoding("UTF-8");PrintWriter out = response.getWriter();out.println("<html><head><title>hello world</title></head>");out.println("<body><h1>Hello world!!! hhh </h1></body></html>");out.flush();} }web.xml的配置
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"version="4.0"><servlet><servlet-name>HelloWorld</servlet-name><servlet-class>com.atchina.servlet.HelloWorldServlet</servlet-class></servlet><servlet-mapping><servlet-name>HelloWorld</servlet-name><url-pattern>/HelloWorld</url-pattern></servlet-mapping> </web-app>
浏览器永远面向的是服务器端。
将jsp页面看作是嵌套了java代码的html页面。
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