怎么连接安卓的mysql 安卓手机如何连

Android 开发。。。如何连接到服务器上的mysql数据库

1、首先输入代码

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public void SendByHttpClient(final String id, final String pw){

new Thread(new Runnable() {

@Override

public void run() {

try {

HttpClient httpclient=new DefaultHttpClient();

HttpPost httpPost=new HttpPost("应用部署服务器上的IP地址:/HttpClientDemo/Login");//服务器地址,指向Servlet

ListNameValuePair params=new ArrayListNameValuePair();//将id和pw装入list

params.add(new BasicNameValuePair("ID",id));

params.add(new BasicNameValuePair("PW",pw));

final UrlEncodedFormEntity entity=new UrlEncodedFormEntity(params,"utf-8");//以UTF-8格式发送

httpPost.setEntity(entity);

HttpResponse httpResponse= httpclient.execute(httpPost);

if(httpResponse.getStatusLine().getStatusCode()==200)//在200毫秒之内接收到返回值

2、然后再输入下方的代码:

{

HttpEntity entity=httpResponse.getEntity();

String response=EntityUtils.toString(entity1, "utf-8");//以UTF-8格式解析

Message message=new Message();

message.what=USER_LOGIN;

message.obj=response;

handler.sendMessage(message);使用Message传递消息给线程

}

}

catch (Exception e) {

e.printStackTrace();

}

}

}).start();

}

3、最终,测试结果图,如下:

安卓app 怎么连接mysql

android 链接mysql数据库实例:

package com.hl;

import java.sql.DriverManager;

import java.sql.ResultSet;

import com.mysql.jdbc.Connection;

import com.mysql.jdbc.Statement;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

public class AndroidMsql extends Activity {

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

Button btn=(Button)findViewById(R.id.btn);

btn.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

sqlCon();

}

});

}

private void mSetText(String str){

TextView txt=(TextView)findViewById(R.id.txt);

txt.setText(str);

}

private void sqlCon(){

try {

Class.forName("com.mysql.jdbc.Driver");

} catch (Exception e) {

e.printStackTrace();

}

try {

String url ="jdbc:mysql://192.168.142.128:3306/mysql?user=zzfeihuapassword=12345useUnicode=truecharacterEncoding=UTF-8";//链接数据库语句

Connection conn= (Connection) DriverManager.getConnection(url); //链接数据库

Statement stmt=(Statement) conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);

String sql="select * from user";//查询user表语句

ResultSet rs=stmt.executeQuery(sql);//执行查询

StringBuilder str=new StringBuilder();

while(rs.next()){

str.append(rs.getString(1)+"\n");

}

mSetText(str.toString());

rs.close();

stmt.close();

conn.close();

} catch (Exception e) {

e.printStackTrace();

}

}

}

不过eclipse老是提示:

warning: Ignoring InnerClasses attribute for an anonymous inner class that doesn't come with an associated EnclosingMethod attribute. (This class was probably produced by a broken compiler.)

android怎么连接mysql数据库

用Android程序去直连MySQL数据库,觉得这样做不好,出于安全等方面考虑。数据库地址,用户名密码,查询SQL什么的都存在程序里,很容易被反编译等方法看到。

建议把表示层和数据层逻辑分开,数据层对应网页的表示层提供接口,同时在为Android手机端提供一个接口,简介访问数据库,这接口可以2端都保持一致,比如XML+RPC或者json等等,Android端也有现成的东西能直接用,既安全又省事。

android 链接mysql数据库实例:

package com.hl;

import java.sql.DriverManager;

import java.sql.ResultSet;

import com.mysql.jdbc.Connection;

import com.mysql.jdbc.Statement;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

public class AndroidMsql extends Activity {

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

Button btn=(Button)findViewById(R.id.btn);

btn.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

sqlCon();

}

});

}

private void mSetText(String str){

TextView txt=(TextView)findViewById(R.id.txt);

txt.setText(str);

}

private void sqlCon(){

try {

Class.forName("com.mysql.jdbc.Driver");

} catch (Exception e) {

e.printStackTrace();

}

try {

String url ="jdbc:mysql://192.168.142.128:3306/mysql?user=zzfeihuapassword=12345useUnicode=truecharacterEncoding=UTF-8";//链接数据库语句

Connection conn= (Connection) DriverManager.getConnection(url); //链接数据库

Statement stmt=(Statement) conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);

String sql="select * from user";//查询user表语句

ResultSet rs=stmt.executeQuery(sql);//执行查询

StringBuilder str=new StringBuilder();

while(rs.next()){

str.append(rs.getString(1)+"\n");

}

mSetText(str.toString());

rs.close();


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