我想做一个Android端教务系统，通过Volley发送请求。
思路为：1.获取并存储cookie2.保存网页的__VIEWSTATE值3.头信息中带上cookie，下载验证码4.设置头信息post数据
预期是302重定向到首页，但现在却重定向到了错误页面。
post的值都检查过了，__VIEWSTATE也是通过Jsoup获取到，头信息也设置了，fiddle抓包发现cookie也是设置成功了。难道是Android上的缓存缘故吗？
用python又是成功的
实在想不到是什么原因，还望各位大神指教！

出错信息


以下为模拟登录fiddle抓包

获取到cookie


带上cookie下载验证码
[/img]

重定向地址



模拟登录时post数据



以下为浏览器登录的重定向地址及post的数据



以下为实现cookie保存、__VIEWSTATE保持、下载验证码、post数据代码

packagecom.cyj.volley;



importjava.io.UnsupportedEncodingException;

importjava.util.HashMap;

importjava.util.Map;



importorg.json.JSONException;

importorg.json.JSONObject;

importorg.jsoup.Jsoup;

importorg.jsoup.nodes.Document;



importandroid.content.Context;

importandroid.content.SharedPreferences;

importandroid.graphics.Bitmap;

importandroid.graphics.Bitmap.Config;

importandroid.widget.ImageView;

importandroid.widget.Toast;



importcom.android.volley.AuthFailureError;

importcom.android.volley.NetworkResponse;

importcom.android.volley.ParseError;

importcom.android.volley.Request.Method;

importcom.android.volley.RequestQueue;

importcom.android.volley.Response;

importcom.android.volley.VolleyError;

importcom.android.volley.toolbox.HttpHeaderParser;

importcom.android.volley.toolbox.ImageRequest;

importcom.android.volley.toolbox.StringRequest;

importcom.android.volley.toolbox.Volley;

importcom.cyj.util.LogUtil;

importcom.cyj.volleytest.R;



publicclassVolleyManager{



	privatestaticVolleyManagervolleyManager;

	privatestaticRequestQueuerequestQueue;

	privatestaticContextcontext;

	privatefinalStringuserAgent="Mozilla/5.0(Linux;Android5.1;GoogleNexus4-5.1.0-API22-768x1280Build/LM";

	

	privateVolleyManager(){

		requestQueue=Volley.newRequestQueue(context);

	}

	

	publicstaticVolleyManagergetInstance(){

		if(volleyManager==null){

			synchronized(VolleyManager.class){

				if(volleyManager==null){

					volleyManager=newVolleyManager();

				}

			}

		}

		returnvolleyManager;

	}

	

	

	/**

	*获取cookie并保持

	*

	*@paramurl

	**/

	privatevoid_stringRequestGet(Stringurl){

		StringRequeststringRequest=newStringRequest(url,

				newResponse.Listener<String>(){



					@Override

					publicvoidonResponse(Stringresponse){

						Documentdoc=Jsoup.parse(response);

						String__VIEWSTATE=doc.select("input").first().attr("value");

						saveSettingNote("VIEWSTATE",__VIEWSTATE);

//						LogUtil.i("VolleyManager","_stringRequestGet,__VIEWSTATE="+__VIEWSTATE);

					}

				},

				newResponse.ErrorListener(){



					@Override

					publicvoidonErrorResponse(VolleyErrorerror){

						LogUtil.e("VolleyManager",error.getMessage(),error);

					}

				}){

			@Override

			protectedResponse<String>parseNetworkResponse(

					NetworkResponseresponse){

				try{

					Map<String,String>map=response.headers;

					Stringcookie=map.get("Set-Cookie").trim().split(";")[0];

					saveSettingNote("cookie",cookie);

//					LogUtil.i("VolleyManager","_stringRequestGet,cookie="+cookie);

					Stringdata=newString(response.data,"UTF-8");

					returnResponse.success(data,

							HttpHeaderParser.parseCacheHeaders(response));

				}catch(UnsupportedEncodingExceptione){

					returnResponse.error(newParseError(e));

				}

			}

		};

		requestQueue.add(stringRequest);

	}

	

	privatevoid__stringRequestGet(Stringurl){

		finalMap<String,String>headers=newHashMap<String,String>();

		StringRequeststringRequest=newStringRequest(url,

				newResponse.Listener<String>(){



					@Override

					publicvoidonResponse(Stringresponse){

						LogUtil.d("VolleyManager","__stringRequestGet,response="+response);

					}

				},newResponse.ErrorListener(){



					@Override

					publicvoidonErrorResponse(VolleyErrorarg0){

						

					}

				}){

			@Override

			publicMap<String,String>getHeaders()

					throwsAuthFailureError{

				Stringcookie=getSettingNote("cookie");

				headers.put("Cookie",cookie);

				headers.put("X-Requested-With","com.android.browser");

				headers.put("Referer","http://jw1.wucc.cn/default2.aspx");

				headers.put("User-Agent",userAgent);

				returnheaders;

			}

		};

	}

	

	

	/**

	*带上cookie下载验证码

	*

	*@paramurl

	*@paramimg

	**/

	privatevoid_downloadImage(Stringurl,finalImageViewimg){

		ImageRequestimageRequest=newImageRequest(url,

				newResponse.Listener<Bitmap>(){



					@Override

					publicvoidonResponse(Bitmapbitmap){

						img.setImageBitmap(bitmap);

					}

				},0,0,Config.RGB_565,

				newResponse.ErrorListener(){



					@Override

					publicvoidonErrorResponse(VolleyErrorerror){

						img.setImageResource(R.drawable.ic_launcher);

					}

				}){

			@Override

			publicMap<String,String>getHeaders()

					throwsAuthFailureError{

				Map<String,String>headers=newHashMap<String,String>();

				Stringcookie=getSettingNote("cookie");

				headers.put("Cookie",cookie);

//				LogUtil.i("VolleyManager","_downloadImage,cookie="+cookie);

				headers.put("X-Requested-With","com.android.browser");

				headers.put("Referer","http://jw1.wucc.cn/");

				headers.put("User-Agent",userAgent);

//				LogUtil.i("VolleyManager","_downloadImage,headers="+headers);

				returnheaders;

			}

		};

		requestQueue.add(imageRequest);

	}

	

	/**

	*添加头信息POST发送数据

	*

	*@paramurl

	*@paramusername

	*@parampassword

	*@paramcheckcode

	**/

	privatevoid_stringRequestPost(Stringurl,finalMap<String,String>headers,

			finalMap<String,String>data){

		StringRequeststringRequest=newStringRequest(Method.POST,url,

				newResponse.Listener<String>(){



					@Override

					publicvoidonResponse(Stringresponse){

						LogUtil.e("VolleyManager","_stringRequestPost,response="+response);

					}

				},

				newResponse.ErrorListener(){



					@Override

					publicvoidonErrorResponse(VolleyErrorerror){

						LogUtil.e("VolleyManager",error.getMessage(),error);

					}

				}){

			@Override

			publicMap<String,String>getHeaders()

					throwsAuthFailureError{

				Stringcookie=getSettingNote("cookie");

				headers.put("Cookie",cookie);

				headers.put("User-Agent",userAgent);

				headers.put("X-Requested-With","com.android.browser");

//				LogUtil.i("VolleyManager","_stringRequestPost,headers="+headers.toString());

				returnheaders;

			}

			@Override

			protectedMap<String,String>getParams()

					throwsAuthFailureError{

				data.put("__VIEWSTATE",getSettingNote("VIEWSTATE"));

//				LogUtil.i("VolleyManager","_stringRequestPost,data="+data.toString());

				returndata;

			}

			@Override

			protectedResponse<String>parseNetworkResponse(

					NetworkResponseresponse){

				Stringstr=null;

				try{

					str=newString(response.data,"gb2312");

				}catch(UnsupportedEncodingExceptione){

					e.printStackTrace();

				}

				returnResponse.success(str,HttpHeaderParser.parseCacheHeaders(response));

			}

		};

		requestQueue.add(stringRequest);

	}

	

	

	

	/***********************对外方法***********************/

	

	publicstaticvoidsetContext(Contextcontext){

		VolleyManager.context=context;

	}

	

	publicstaticvoidstringRequestGet(Stringurl){

		getInstance()._stringRequestGet(url);

	}

	

	publicstaticvoiddownloadImage(Stringurl,ImageViewimg){

		getInstance()._downloadImage(url,img);

	}

	

	publicstaticvoidstringRequestPost(Stringurl,Map<String,String>headers,

			Map<String,String>data){

		getInstance()._stringRequestPost(url,headers,data);

	}



	publicstaticvoid_stringRequestPost(Stringurl){

		getInstance().__stringRequestGet(url);

	}

	

	/************************辅助方法*************************/

	/**

	*保存cookie

	**/

	privatevoidsaveSettingNote(Stringkey,Stringvalue){

SharedPreferences.Editornote=context.getSharedPreferences("values",

		Context.MODE_PRIVATE)

		.edit();

note.putString(key,value);

//LogUtil.d("VolleyManager","savesettingnote,data="+value);

note.commit();

}

	

	/**

	*读取cookie

	**/

	privateStringgetSettingNote(Stringkey){

SharedPreferencesread=context.getSharedPreferences("values",Context.MODE_PRIVATE);

//LogUtil.d("VolleyManager","getsettingnote,data="+read.getString(key,""));

returnread.getString(key,"");

}

	

}

先在这里谢过各位！

2 个解决方案

#1

---

论坛都没人吗？

更多相关文章

1. Android中复杂Json数据的解析
2. 无法从Android中的Asset文件夹复制数据库
3. 关于activity之间及activity与baseAdapter,activity与Fragment的
4. Android防止活动被回收而丢失数据
5. Android之SQLite数据库篇
6. 关于android中sharedpreferences数据不更新的问题
7. Java项目无法通过BufferedWriter向服务器写数据？
8. Android（监听+回调=观察者）模式从Dialog到Activity传递数据
9. android获取网络数据

随机推荐

1. Golang 是面向对象还是面向过程？
2. golang吉祥物是啥？
3. Golang 和 PHP 哪个性能更强？
4. golang会代替java吗？
5. Golang 底层也用 Golang 吗？
6. golang和哪种语言像？
7. golang和nodejs的区别是什么？
8. golang如何连接mysql
9. golang如何读取文件
10. golang和go语言有区别吗？