[android]-如何在向服务器发送request时附加已保存的cookie数据

应用场景:
在开发android基于手机端+服务器端的应用时,登陆->获取用户信息->获取授权用户相关业务数据(如用户工作任务安排)
,此时就涉及到在登陆后必须把保存有用户已登陆的cookie数据(和服务器端使用cookie或session来判断用户是否登陆没关系,因为这两种方式,在客户端来说,都是通过保存cookie数据来实现的)一同发送到服务器端,不然,服务器端会认为你没有登陆,而不给提供用户工作任务安排的数据

我在工作中就遇到过这问题

一开始我是这样书写代码的

`01`	`importjava.io.IOException;`

`02`	`importjava.net.SocketTimeoutException;`

`03`	`importjava.util.ArrayList;`

`04`	`importjava.util.List;`

`05`	`importorg.apache.http.HttpResponse;`

`06`	`importorg.apache.http.NameValuePair;`

`07`	`importorg.apache.http.client.methods.HttpPost;`

`08`	`importorg.apache.http.impl.client.AbstractHttpClient;`

`09`	`importorg.apache.http.impl.client.DefaultHttpClient;`

10

11

`12`	`String result ="";`

`13`	`/* HTTP Post */`

`14`	`HttpPost httpRequest =newHttpPost(url);`

15

`16`	`List<NameValuePair> params =newArrayList<NameValuePair>();`

`17`	`params.add(newBasicNameValuePair(para, data));// jsonParameter`

18

19 try{

`20`	`// HTTP request`

`21`	`httpRequest.setEntity(newUrlEncodedFormEntity(params, HTTP.UTF_8));`

`22`	`// HTTP response`

23

`24`	`DefaultHttpClient defaultHttpClient =newDefaultHttpClient();`

25 // 请求超时

`26`	`defaultHttpClient.getParams().setParameter(`

`27`	`CoreConnectionPNames.CONNECTION_TIMEOUT,10000);`

28 // 读取超时

`29`	`defaultHttpClient.getParams().setParameter(`

`30`	`CoreConnectionPNames.SO_TIMEOUT,10000);`

31

32

33 // 发送请求

`34`	`HttpResponse httpResponse = defaultHttpClient.execute(httpRequest);`

35

`36`	`// 得到应答的字符串`

`37`	`// 200 ok`

`38`	`if(httpResponse.getStatusLine().getStatusCode() ==200) {`

`39`	`result = EntityUtils.toString(httpResponse.getEntity());`

40

41 }

`42`	`}catch(ClientProtocolException e) {`

`43`	`System.out.println("ClientProtocolException:"+ e.toString());`

`44`	`e.printStackTrace();`

`45`	`returnnull;`

`46`	`}catch(UnsupportedEncodingException e) {`

`47`	`System.out.println("UnsupportedEncodingException:"+ e.toString());`

`48`	`e.printStackTrace();`

`49`	`}catch(SocketTimeoutException e) {`

`50`	`System.out.println("SocketTimeoutException:"+ e.toString());`

`51`	`e.printStackTrace();`

`52`	`}catch(IOException e) {`

`53`	`System.out.println("IOException:"+ e.toString());`

`54`	`e.printStackTrace();`

55 }

调用发现登陆成功后在获取工作任务时服务器提示未登陆,看来是没把cookie发送到服务器,由是找资料

修改后如下,有两个类
WebHelperResponse.java

`1`	`packagecom.demo.utils;`

2

`3`	`publicclassWebHelperResponse {`

`4`	`publicString ResponseText ="";`

`5`	`publicbooleanIsOk =false;`

`6`	`publicbooleanIsError =false;`

`7`	`publicString ErrMsg ="";`

8 }

WebHelper.java

view source print ?

001 packagecom.nt.android.app.slorders.utils;

002

003 importjava.io.IOException;

004 importjava.net.SocketTimeoutException;

005 importjava.util.ArrayList;

006 importjava.util.List;

007 importorg.apache.http.HttpResponse;

008 importorg.apache.http.NameValuePair;

009 importorg.apache.http.client.CookieStore;

010 importorg.apache.http.client.entity.UrlEncodedFormEntity;

011 importorg.apache.http.client.methods.HttpPost;

012 importorg.apache.http.impl.client.AbstractHttpClient;

013 importorg.apache.http.impl.client.DefaultHttpClient;

014 importorg.apache.http.message.BasicNameValuePair;

015 importorg.apache.http.params.CoreConnectionPNames;

016 importorg.apache.http.protocol.HTTP;

017 importorg.apache.http.util.EntityUtils;

018

019 publicclassWebHelper {

020

021 privatestaticCookieStore cookieStore;

022

023 publicstaticWebHelperResponse postJson(String url, String data) {

024 returnpostData(url, data,"jsondata");

025 }

026

027 publicstaticWebHelperResponse postXml(String url, String data) {

028 returnpostData(url, data,"xmldata");

029 }

030

031 // url参数中不允许有空格,否则将在new HttpPost(url)引发java.lang.IllegalArgumentException错误

032 publicstaticWebHelperResponse postData(String url, String data,

033 String para) {

034 WebHelperResponse m_response =newWebHelperResponse();

035 m_response.IsOk =false;

036 m_response.IsError =false;

037

038 String result ="";

039 /* HTTP Post */

040 HttpPost httpRequest =newHttpPost(url);

041 // param NameValuePair[]

042 // request.getParameter("name")

043 List<NameValuePair> params =newArrayList<NameValuePair>();

044 params.add(newBasicNameValuePair(para, data));// jsonParameter

045

046 try{

047 // HTTP request

048 httpRequest.setEntity(newUrlEncodedFormEntity(params, HTTP.UTF_8));

049 // HTTP response

050

051 DefaultHttpClient defaultHttpClient =newDefaultHttpClient();

052 // 请求超时

053 defaultHttpClient.getParams().setParameter(

054 CoreConnectionPNames.CONNECTION_TIMEOUT,10000);

055 // 读取超时

056 defaultHttpClient.getParams().setParameter(

057 CoreConnectionPNames.SO_TIMEOUT,10000);

058 // 添加Cookie

059 if(cookieStore !=null) {

060 defaultHttpClient.setCookieStore(cookieStore);

061 }

062

063 // 发送请求

064 HttpResponse httpResponse = defaultHttpClient.execute(httpRequest);

065 intresponseStatusCode = httpResponse.getStatusLine()

066 .getStatusCode();

067 System.out.println("response statuscode:"+ responseStatusCode);

068 // 得到应答的字符串

069 // 200 ok

070 if(responseStatusCode ==200) {

071 result = EntityUtils.toString(httpResponse.getEntity());

072 // 保存Cookie

073 cookieStore = ((AbstractHttpClient) defaultHttpClient)

074 .getCookieStore();

075

076 m_response.IsError =false;

077 m_response.IsOk =true;

078 m_response.ResponseText = result;

079

080 }elseif(responseStatusCode ==404) {

081 // 找不到页面

082 m_response.IsError =true;

083 m_response.IsOk =false;

084 System.out.println("404:page not found.");

085 m_response.ErrMsg ="不存在此服务,请检查服务器地址配置";

086 }else{

087 m_response.IsError =true;

088 m_response.IsOk =false;

089 System.out.println("error,responsestatuscode:"

090 + responseStatusCode);

091 m_response.ErrMsg ="服务出错";

092 }

093 }catch(SocketTimeoutException e) {

094 System.out.println("ClientProtocolException:"+ e.toString());

095 e.printStackTrace();

096

097 m_response.IsError =true;

098 m_response.IsOk =false;

099 m_response.ErrMsg ="连接错误:未能连接到服务器!";

100

101 }catch(IOException e) {

102 System.out.println("ClientProtocolException:"+ e.toString());

103 e.printStackTrace();

104

105 m_response.IsError =true;

106 m_response.IsOk =false;

107 m_response.ErrMsg ="错误:服务器未能提供服务!";

108

109 }

110 returnm_response;

111 }

112

113 }

[android]-如何在向服务器发送request时附加已保存的cookie数据

[android]-如何在向服务器发送request时附加已保存的cookie数据

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