servlet_07 servlet复选框实例_用servlet制作复选

作者：Cpp五条 | 2024-05-28 00:49:06

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用servlet制作复选

CheckBox.java:


package MyServlet;
 
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.*;
import java.io.IOException;
 
/**
 * Created by 1192126986 on 2017/1/16.
 */
@WebServlet(name = "CheckBox")
public class CheckBox extends HttpServlet {
 
 
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out=response.getWriter();
        String title = "读取复选框数据";
        String docType = "<!DOCTYPE html> \n";
        out.println(docType +
                "<html>\n" +
                "<head><title>" + title + "</title></head>\n" +
                "<body bgcolor=\"#f0f0f0\">\n" +
                "<h1 align=\"center\">" + title + "</h1>\n" +
                "<ul>\n" +
                "  <li><b>菜鸟按教程标识：</b>: "
                + request.getParameter("runoob") + "\n" +
                "  <li><b>Google 标识：</b>: "
                + request.getParameter("google") + "\n" +
                "  <li><b>淘宝标识：</b>: "
                + request.getParameter("taobao") + "\n" +
                "</ul>\n" +
                "</body></html>");
    }
 
    // 处理 POST 方法请求的方法
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }
 
 
}

web.xml:


<?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_3_1.xsd"
         version="3.1">
    <servlet>
        <servlet-name>CheckBox</servlet-name>
        <servlet-class>MyServlet.CheckBox</servlet-class>
    </servlet>
    
    <servlet-mapping>
        <servlet-name>CheckBox</servlet-name>
        <url-pattern>/CheckBox</url-pattern>
    </servlet-mapping>
</web-app>

checkbox.html:


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>菜鸟教程</title>
</head>
<body>
    <!--target属性 值：_blank... 描述：规定在何处打开action url-->
<form action="CheckBox" method="post" target="_blank">
    <!--check属性 值：checked 描述：规定此input元素首次加载时被选中-->
    <input type="checkbox" name="runoob" checked="checked" />菜鸟教程
    <input type="checkbox" name="Google" />Google
    <input type="checkbox" name="taobao" checked="checked" />淘宝
    <input type="submit" value="选择此站">
</form>
 
</body>
</html>

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