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MyEclipse 6 实战开发讲解视频入门 5 MyEclipse 6 + Tomcat 6 Servlet 入门开发

2007-10-06 10:26 726 查看

视频内容:

1. 从 http://tomcat.apache.org/ 下载并安装 Tomcat 6 服务器
2. 在 MyEclipse 中配置服务器
3. 在 MyEclipse 中启动/停止 Tomcat 6
4. 新建 Web 项目
5. 新建静态页面并添加 GET 和 POST 表单
6. 创建 FormServlet
7. 编写代码将参数读取出来并输出
8. 发布并测试运行, 查看发布内容
9. 页面输出汉字内容乱码问题解决 + 如何重新发布
10. POST 方式表单参数乱码解决
11. GET 方式表单参数乱码解决

下载: http://beansoft.java-cn.org/download/MyEclipse6_6.exe 9.37 MB 27分06秒

相关代码:

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
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_2_5.xsd"> <servlet>
<description>This is the description of my J2EE component</description>
<display-name>This is the display name of my J2EE component</display-name>
<servlet-name>FormServlet</servlet-name>
<servlet-class>servlet.FormServlet</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>FormServlet</servlet-name>
<url-pattern>/FormServlet</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

form.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>form.html</title>

<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=GBK">

<!--<link rel="stylesheet" type="text/css" href="./styles.css">-->

</head>

<body>
<form action="./FormServlet" method="GET">
GET: <input name="username">
<input type="submit">
</form>

<form action="./FormServlet" method="POST">
POST: <input name="username">
<input type="submit">
</form>
</body>
</html>

FormServlet.java

package servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class FormServlet extends HttpServlet {

/**
* Constructor of the object.
*/
public FormServlet() {
super();
}

/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}

/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("GBK");
response.setContentType("text/html;charset=GBK");
PrintWriter out = response.getWriter();
out
.println("<!DOCTYPE HTML PUBLIC /"-//W3C//DTD HTML 4.01 Transitional//EN/">");
out.println("<HTML>");
out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println("  <BODY>");
out.print("   您输入的用户名是:");
// GET 方式, 编码转换
String username = request.getParameter("username");
username = new String(username.getBytes("ISO8859-1"), "GBK");

out.print(username);
out.println(", using the GET method");
out.println("  </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}

/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// POST 表单参数的乱码解决
request.setCharacterEncoding("GBK");

response.setContentType("text/html;charset=GBK");
PrintWriter out = response.getWriter();
out
.println("<!DOCTYPE HTML PUBLIC /"-//W3C//DTD HTML 4.01 Transitional//EN/">");
out.println("<HTML>");
out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println("  <BODY>");
out.print("   您输入的用户名是:");
out.print(request.getParameter("username"));
out.println(", using the POST method");
out.println("  </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}

/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}

}

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