Question

我在localhost上运行我的servlet程序，我的android代码在同一系统中的模拟器上运行，我想从android客户端向servlet发送一些请求，而servlet程序也应该发回一些数据获取请求后到android，它应该使用响应发送。请让我知道代码。

这是我的android代码：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;

import android.util.Log;

public class CheckHttpClint {
    public static void executeHttpPost() throws IOException {
        BufferedReader bufferedReader = null;
        try {

            HttpClient client = new DefaultHttpClient();

            HttpPost httpPost = new HttpPost("url");

            List<BasicNameValuePair> pairs = new ArrayList<BasicNameValuePair>();
            String details = "details";
            pairs.add(new BasicNameValuePair("pid", details));
            httpPost.setEntity(new UrlEncodedFormEntity(pairs));
            HttpResponse httpResponse = client.execute(httpPost);

            bufferedReader = new BufferedReader(new InputStreamReader(
                                                    httpResponse.getEntity().getContent()));
            StringBuffer buffer = new StringBuffer("");
            String line = "";
            String NL = System.getProperty("line.separater");
            while ((line = bufferedReader.readLine()) != null) {
                buffer.append(line + NL);
                System.out.println(buffer);
                Log.i("data send.", null);


            }
            bufferedReader.close();
            String page = buffer.toString();
            System.out.println(page);

        } finally {
            if (bufferedReader != null) {
                try {
                    bufferedReader.close();
                } catch (IOException exception) {
                    exception.printStackTrace();
                }
            }
        }
    }
}


servlet code:
import java.io.*;
import java.util.*;
import javax.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class DBConnection extends HttpServlet {
    public void doGet(HttpServletRequest request, HttpServletResponse response)throws     IOException, ServletException {



        response.setContentType("text/html");
        PrintWriter out = response.getWriter();

        out.println("<html>");
        out.println("<body>");

        String pid1 = request.getParameter("pid");
        out.print(pid1);
        out.println("</body></html>");
        out.close();
    }

}

Answer 1

你可以找到一个描述GET，POST和MULTIPART POST here

的android教程

使用servlet的Android客户端和服务器

1 个答案: