Android AsyncHttpClient登录保存cookie和读写cookie

AsyncHttpClient有个特性：

(11)持久化cookie存储，可以将cookie保存到你的应用程序的SharedPreferences中

AsyncHttpClient Cookie相关的官方的文档

This library also includes a

PersistentCookieStore

which

is an implementation of the Apache HttpClient

CookieStore

interface

that automatically saves cookies to

SharedPreferences

storage

on the Android device.

大概意思是将coolies自动保存到了首选项中。

写Cookie的场景

比如登录。在用户首次登录成功的时候，我们会从服务端取得Cookie，存储在用户手机的本地文件中。在用户下次打开应用时，会首先读取本地Cookie，Cookie没有过期的话，直接引导用户到相应界面，不再进行登录。

读Cookie的场景

除了登录之外，还有某些特殊的服务器请求，需要将本地Cookie信息一起发给服务端。

AsyncHttpClient会获取到你的cookies然后自动保存到你的首选项中，这时候只需要我们手动set一下即可，这样就保持了和服务端的session一致问题，也不会导致出现401权限错误，代码如下：

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PersistentCookieStore myCookieStore = new PersistentCookieStore(this);

client.setCookieStore(myCookieStore);

测试代码：

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package com.example.cookietest;

import java.util.List;

import org.apache.http.Header;

import org.apache.http.client.CookieStore;

import org.apache.http.client.protocol.ClientContext;

import org.apache.http.cookie.Cookie;

import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.protocol.HttpContext;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.text.TextUtils;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

import android.widget.Toast;

import com.example.cookietest.LoginManager.ICallBack;

import com.loopj.android.http.AsyncHttpClient;

import com.loopj.android.http.AsyncHttpResponseHandler;

import com.loopj.android.http.PersistentCookieStore;

import com.loopj.android.http.RequestParams;

//参考文章：http://blog.csdn.net/jdsjlzx/article/details/44632451

public class MainActivity extends Activity implements OnClickListener {

private final String TAG = "MainActivity";

//用户名

EditText etUserName;

// 密码

EditText etPwd;

// 登录按钮

Button btnLogin;

// 取消按钮

Button btnCancel;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

init();

App app = (App) this.getApplication();

app.mContext = getApplicationContext();

}

private void init() {

etUserName = (EditText) findViewById(R.id.etUserName);

etPwd = (EditText) findViewById(R.id.etPwd);

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

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

btnLogin.setOnClickListener(this);

btnCancel.setOnClickListener(this);

}

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

switch (v.getId()) {

case R.id.btnLogin:

/*new LoginManager().login(etUserName.getText().toString(), etPwd.getText().toString(), new ICallBack() {

@Override

public void onSuccess() {

// TODO Auto-generated method stub

Toast.makeText(App.mContext, "登录成功，cookie=" + Util.getPreference("cookie"), Toast.LENGTH_SHORT).show();

startActivity(new Intent(MainActivity.this, GetVideoListActivity.class));

}

@Override

public void onFailed(String error) {

// TODO Auto-generated method stub

Toast.makeText(App.mContext, error, Toast.LENGTH_SHORT).show();

}

});*/

login(etUserName.getText().toString(), etPwd.getText().toString());

break;

case R.id.btnCancel:

this.finish();

break;

default:

break;

}

}

private void login(String username, String password){

String url = URLContainer.getLoginUrl(

username, password);

final AsyncHttpClient client = new AsyncHttpClient();

//保存cookie，自动保存到了shareprefercece

PersistentCookieStore myCookieStore = new PersistentCookieStore(MainActivity.this);

client.setCookieStore(myCookieStore);

client.post(url, new AsyncHttpResponseHandler() {

@Override

public void onFailure(int statusCode, Header[] headers,

byte[] errorResponse, Throwable e) {

Log.e(TAG, "获取数据异常 ", e);

}

@Override

public void onSuccess(int statusCode, Header[] headers, byte[] response) {

String json = new String(response);

Log.d(TAG, "onSuccess json = " + json);

//测试获得已经保存的cookie

Toast.makeText(App.mContext, "登录成功，cookie=" + getCookieText(), Toast.LENGTH_SHORT).show();

startActivity(new Intent(MainActivity.this, GetVideoListActivity.class));

}

});

}

/**

* 获取标准 Cookie

*/

private String getCookieText() {

PersistentCookieStore myCookieStore = new PersistentCookieStore(MainActivity.this);

List<Cookie> cookies = myCookieStore.getCookies();

Log.d(TAG, "cookies.size() = " + cookies.size());

Util.setCookies(cookies);

for (Cookie cookie : cookies) {

Log.d(TAG, cookie.getName() + " = " + cookie.getValue());

}

StringBuffer sb = new StringBuffer();

for (int i = 0; i < cookies.size(); i++) {

Cookie cookie = cookies.get(i);

String cookieName = cookie.getName();

String cookieValue = cookie.getValue();

if (!TextUtils.isEmpty(cookieName)

&& !TextUtils.isEmpty(cookieValue)) {

sb.append(cookieName + "=");

sb.append(cookieValue + ";");

}

}

Log.e("cookie", sb.toString());

return sb.toString();

}

}

代码下载：
http://download.csdn href="http://lib.csdn.net/base/dotnet" target=_blank>.NET/detail/jdsjlzx/8541657

鉴于很多网友对怎么使用还是有疑问，这里再补充下。

自定义FinalAsyncHttpClient（注意：自定义是为了方便使用，每次从服务器请求数据都要带上cookie）：

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package com.lindo.collector.http;

import org.apache.http.cookie.Cookie;

import org.apache.http.impl.client.BasicCookieStore;

import android.content.Context;

import com.lindo.collector.utils.MD5;

import com.lindo.collector.utils.Utils;

import com.loopj.android.http.AsyncHttpClient;

import com.loopj.android.http.RequestParams;

public class FinalAsyncHttpClient {

AsyncHttpClient client;

public FinalAsyncHttpClient() {

client = new AsyncHttpClient();

client.setConnectTimeout(5);//5s超时

if (Utils.getCookies() != null) {//每次请求都要带上cookie

BasicCookieStore bcs = new BasicCookieStore();

bcs.addCookies(Utils.getCookies().toArray(

new Cookie[Utils.getCookies().size()]));

client.setCookieStore(bcs);

}

}

public AsyncHttpClient getAsyncHttpClient(){

return this.client;

}

}

请求数据：

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private void getJoinedDoingsInfo(String id) {

String url = Constant.USER_JOINED_TASK_INFO_URL;

FinalAsyncHttpClient finalAsyncHttpClient = new FinalAsyncHttpClient();

AsyncHttpClient client = finalAsyncHttpClient.getAsyncHttpClient();

RequestParams params = new RequestParams();

params.put("task_id", id);

client.get(url, params, new AsyncHttpResponseHandler() {

@Override

public void onFailure(int statusCode, Header[] headers,

byte[] responseBody, Throwable error) {

}

@Override

public void onSuccess(int statusCode, Header[] headers, byte[] data) {

String json = new String(data);

Log.d(TAG, "onSuccess " + json);

}

});

}

Utils.Java

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public class Utils {

private static List<Cookie> cookies;

public static List<Cookie> getCookies() {

return cookies != null ? cookies : new ArrayList<Cookie>();

}

public static void setCookies(List<Cookie> cookies) {

Utils.cookies = cookies;

}

}

登陆：

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private void login(final String phoneNum, final String userPass) {

Log.d(TAG, "login userPass = " + userPass);

String url = Constant.USER_LOGIN_URL;

FinalAsyncHttpClient finalAsyncHttpClient = new FinalAsyncHttpClient();

AsyncHttpClient client = finalAsyncHttpClient.getAsyncHttpClient();

saveCookie(client);

RequestParams params = finalAsyncHttpClient.getCommonRequestParams(this);

params.put("username", phoneNum);

params.put("pwd", userPass);

client.post(url, params, new AsyncHttpResponseHandler() {

@Override

public void onFailure(int statusCode, Header[] headers,

byte[] errorResponse, Throwable e) {

}

@Override

public void onSuccess(int statusCode, Header[] headers,

byte[] response) {

Log.d(TAG, "onSuccess statusCode = " + statusCode);

String json = new String(response);

Utils.setCookies(getCookie());}});}

在登陆时调用的方法

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protected void saveCookie(AsyncHttpClient client) {

PersistentCookieStore cookieStore = new PersistentCookieStore(this);

client.setCookieStore(cookieStore);

}

protected List<Cookie> getCookie(){

PersistentCookieStore cookieStore = new PersistentCookieStore(this);

List<Cookie> cookies = cookieStore.getCookies();

return cookies;

}

public void clearCookie(){

PersistentCookieStore cookieStore = new PersistentCookieStore(this);

cookieStore.clear();

}

在Activity中调用：

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private void getTaskPicTags(final String url){

Log.d(TAG, "getTaskPicTags url = " + url);

FinalAsyncHttpClient finalAsyncHttpClient = new FinalAsyncHttpClient();

AsyncHttpClient client = finalAsyncHttpClient.getAsyncHttpClient();

RequestParams params = finalAsyncHttpClient.getCommonRequestParams(this);

client.get(url, params, new AsyncHttpResponseHandler() {

@Override

public void onSuccess(int statusCode, Header[] headers,

byte[] responseBody) {

String json = new String(responseBody);

Log.d(TAG, "onSuccess " + json);

}

@Override

public void onFailure(int statusCode, Header[] headers,

byte[] responseBody, Throwable error) {

Log.e(TAG, "onFailure " , error);

}

});

}