版权声明:心灵泽尘 https://blog.csdn.net/github_38313789/article/details/83757216
package com.gaozewen.qqloginpost;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Toast;
import com.gaozewen.qqloginpost.utils.StreamUtils;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
public class MainActivity extends AppCompatActivity {
private static final int GET_SERVER_RESP = 1;
private static final int GET_ERROR = 2;
private EditText mEt_qqNumber;
private EditText mEt_password;
private CheckBox mCb_remember;
private Button mBt_login;
/**
* 1.定义一个共享参数(存放数据方便的 api)
*/
private SharedPreferences sp;
// 新建 res/drawable-hdpi
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 2. 通过上下文得到一个共享参数的实例对象
sp = this.getSharedPreferences("config", MODE_PRIVATE);
mEt_qqNumber = findViewById(R.id.et_qqnumber);
mEt_password = findViewById(R.id.et_password);
mCb_remember = findViewById(R.id.cb_remember);
mBt_login = findViewById(R.id.bt_login);
readStore();
}
/**
* 从 sp 文件中读取信息
*/
private void readStore() {
// data/data/包名/shared_prefs
String qq = sp.getString("qq", "");
String password = sp.getString("password", "");
mEt_qqNumber.setText(qq);
mEt_password.setText(password);
mCb_remember.setChecked(true);
}
// 登陆按钮的点击事件
public void login(View view) {
final String qq = mEt_qqNumber.getText().toString().trim();
final String password = mEt_password.getText().toString().trim();
if (TextUtils.isEmpty(qq) || TextUtils.isEmpty(password)) {
Toast.makeText(this, "用户名和密码不能为空", Toast.LENGTH_SHORT).show();
} else {
// 判断是否要记录用户名和密码
if (mCb_remember.isChecked()) {
// 被选中状态需要记录用户名和密码
// 3. 将数据保存到 sp 文件中
SharedPreferences.Editor edit = sp.edit();
edit.putString("qq", qq);
edit.putString("password", password);
edit.apply(); // apply() 异步开个线程执行 commit() 同步 立即执行
}
// 发请求时禁用 button
mBt_login.setEnabled(false);
new Thread() {
@Override
public void run() {
try {
Thread.sleep(5000);
String path = String.format("http://192.168.1.102:8080/login?username=%s&password=%s", qq, password);
URL url = new URL(path);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setConnectTimeout(5000);
// 设置发送数据为表单类型,会被添加到 HTTP body 中
conn.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
String data = String.format("username=%s&password=%s",URLEncoder.encode(qq,"utf-8"),URLEncoder.encode(password,"utf-8"));
conn.setRequestProperty("Content-Length", String.valueOf(data.length()));
// 指定请求输出模式
conn.setDoOutput(true); // 运行当前的应用程序给服务器写数据
conn.getOutputStream().write(data.getBytes());
int code = conn.getResponseCode();
if (code == 200) {
InputStream is = conn.getInputStream();
String result = StreamUtils.readStream(is);
showToastInAnyThread(result);
} else {
showToastInAnyThread("请求失败");
}
} catch (Exception e) {
e.printStackTrace();
showToastInAnyThread("请求失败");
}
}
}.start();
}
}
/**
* 在任何线程中都可以调用 函数 Toast 方法
* @param result
*/
private void showToastInAnyThread(final String result) {
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(),result, Toast.LENGTH_SHORT).show();
}
});
}
}
第三方库
import com.gaozewen.qqloginother.loopj.android.http.AsyncHttpClient;
import com.gaozewen.qqloginother.loopj.android.http.AsyncHttpResponseHandler;
import com.gaozewen.qqloginother.loopj.android.http.RequestParams;
import org.apache.http.Header;