1、服务端的代码如下(需要javax.servlet.jar):view plainprint?
package com.lanp.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 HandlerHttpRequestServlet extends HttpServlet { private static final long serialVersionUID = 1L;
@Override protected void doGet(HttpServletRequest arg0, HttpServletResponse arg1)throws ServletException, IOException { super.doGet(arg0, arg1);}
@Override protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException { String username =req.getParameter("username"); //获取username所对应的value String password =req.getParameter("password"); //获取password所对应的value System.out.println("The received username and password is: " + username + "/" +password);
// 向请求端发回反馈信息PrintWriter out =resp.getWriter();out.print("OK");out.flush();out.close();
super.doPost(req, resp);}
2、在Tomcat的webapps文件夹下新建一个JavaApp的文件夹,在JavaApp下新建一个WEB-INF文件夹,在WEB-INF下新建lib文件夹和classes文件夹,在WEB-INF下新建一个web.xml文件。
3、lib文件夹下放commons-logging-1.0.4.jar和commons-logging-1.0.4.jar. 4、classes文件夹下放HandlerHttpRequestServlet.class文件。
5、web.xml文件的内容如下:view plainprint?
<?xml version="1.0" encoding="UTF-8"?> <web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <display-name>JavaApp</display-name>
<servlet> <servlet-name>JavaAppAervletUpLoad</servlet-name> <servlet-class>com.lanp.servlet.HandlerHttpRequestServlet</servlet-class> </servlet>
<servlet-mapping> <servlet-name>JavaAppAervletUpLoad</servlet-name> <url-pattern>/temp</url-pattern> </servlet-mapping>
<welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> </web-app>
6、Java应用程序代码如下:view plainprint?
package com.lanp;
import java.io.BufferedReader;import java.io.InputStream;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.net.HttpURLConnection;import java.net.URL;
/** * Java应用程序* @author LanP * @since 2011-11-1 22:36 * @version V1.0 */ public class JavaApp {
public static void main(String[] args) throws Exception { // 服务地址URL url = new URL("http://127.0.0.1:8080/JavaApp/temp");
// 设定连接的相关参数HttpURLConnection connection= (HttpURLConnection) url.openConnection();connection.setDoOutput(true);connection.setRequestMethod("POST");OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream(), "UTF-8");
// 向服务端发送key = value对out.write("username=lanp&password=lanpiao");out.flush();out.close();
// 获取服务端的反馈String strLine="";String strResponse ="";InputStream in =connection.getInputStream();BufferedReader reader = new BufferedReader(new InputStreamReader(in));while((strLine =reader.readLine()) != null)
{ strResponse +=strLine +" ";} System.out.print(strResponse);}
}
7、先启动Tomcat后运行JavaApp.
OK,TKS!