get提交表单

最新推荐文章于 2023-12-29 12:12:20 发布

转载最新推荐文章于 2023-12-29 12:12:20 发布 · 488 阅读

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本文介绍了一个简单的Android应用程序示例，该应用通过HTTP GET请求实现用户登录功能。文章展示了如何使用Java进行网络请求，并通过Handler机制更新UI显示服务器返回的信息。

<span style="font-size:18px;">package com.melody.get;


import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

import com.melody.html.tool.Tools;

public class MainActivity extends Activity {
	private EditText et_name;
	private EditText et_pass;
	Handler handler = new Handler(){
		public void handleMessage(android.os.Message msg) {
			Toast.makeText(MainActivity.this, (String) msg.obj, 0).show();
		};
	};
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
	}
	
	public void onclick(View v){
		//final String path = "http://192.168.119.69:8080/web/servlet/Login";
		
		et_name = (EditText) findViewById(R.id.et_name);
		et_pass = (EditText) findViewById(R.id.et_pass);
		
		//final String name = et_name.getText().toString().trim();
		final String name = "龙";
		final String pass = et_pass.getText().toString().trim();
		Thread t = new Thread(){
			String path = "http://192.168.1.106:8080/web/servlet/Login?name=" + URLEncoder.encode(name)		//对要提交的表单数据进行URL编码（中文） 
																													+ "&pass=" + pass;
			public void run() {
				try {
					URL url = new URL(path);
					HttpURLConnection conn = (HttpURLConnection) url.openConnection();
					conn.setRequestMethod("GET");
					conn.setReadTimeout(8000);
					conn.setConnectTimeout(8000);
					
					//判断请求是否成功
					if(conn.getResponseCode() == 200){    //表示成功
						InputStream is = conn.getInputStream();   //成功获取输入流
						//使用自己写的获取流中文本的工具类
						String text = Tools.getTextFromStrem(is);
						//发送消息，刷新UI
						Message msg = handler.obtainMessage();
						msg.obj = text;
						handler.sendMessage(msg);					
					}
				} catch (Exception e) {
					e.printStackTrace();
				}
				
			}
		};
		t.start();
	}
}
</span>