xUtils 框架网络请求

package com.jike.shanglv.NetAndJson;

import java.io.File;

import com.lidroid.xutils.HttpUtils;
import com.lidroid.xutils.exception.HttpException;
import com.lidroid.xutils.http.RequestParams;
import com.lidroid.xutils.http.ResponseInfo;
import com.lidroid.xutils.http.ResponseStream;
import com.lidroid.xutils.http.callback.RequestCallBack;
import com.lidroid.xutils.http.client.HttpRequest;
import com.lidroid.xutils.util.LogUtils;

public class HttpUtil {

	String result = "" ;

	/**
	 * Get请求  异步的
	 * @param url  服务器地址
	 * @param userkey 
	 * @param str
	 * @param sign 签名
	 * @return
	 */
	public String xutilsGet( String url , String userkey , String str , String sign  ){
		RequestParams params = new RequestParams();
		params.addQueryStringParameter("userkey", userkey );
		params.addQueryStringParameter("str", str );
		params.addQueryStringParameter("sign", sign );
		HttpUtils http = new HttpUtils();
		http.configCurrentHttpCacheExpiry(1000 * 10); //设置超时时间   10s
		http.send(HttpRequest.HttpMethod.GET,
				url ,
				new RequestCallBack<String>(){
			@Override
			public void onLoading(long total, long current, boolean isUploading) {

			}

			@Override
			public void onSuccess(ResponseInfo<String> responseInfo) {
				result = responseInfo.result.toString() ;
			}

			@Override
			public void onStart() {
			}

			@Override
			public void onFailure(HttpException error, String msg) {
			}
		});

		return result ;
	}

	/**
	 * Post请求 异步的
	 * @param url
	 * @param userkey
	 * @param str
	 * @param sign
	 * @return
	 */
	public String xutilsPost( String url , String userkey , String str , String sign ){
		RequestParams params = new RequestParams();
		params.addQueryStringParameter("userkey", userkey );
		params.addQueryStringParameter("str", str );
		params.addQueryStringParameter("sign", sign );

		// 只包含字符串参数时默认使用BodyParamsEntity，
		// 类似于UrlEncodedFormEntity（"application/x-www-form-urlencoded"）。
		//params.addBodyParameter("name", "value");

		// 加入文件参数后默认使用MultipartEntity（"multipart/form-data"），
		// 如需"multipart/related"，xUtils中提供的MultipartEntity支持设置subType为"related"。
		// 使用params.setBodyEntity(httpEntity)可设置更多类型的HttpEntity（如：
		// MultipartEntity,BodyParamsEntity,FileUploadEntity,InputStreamUploadEntity,StringEntity）。
		// 例如发送json参数：params.setBodyEntity(new StringEntity(jsonStr,charset));

		HttpUtils http = new HttpUtils();
		http.configCurrentHttpCacheExpiry(1000 * 10); //设置超时时间   10s  
		http.send(HttpRequest.HttpMethod.POST ,
				url ,
				params,
				new RequestCallBack<String>() {

			@Override
			public void onStart() {
			}

			@Override
			public void onLoading(long total, long current, boolean isUploading) {
			}

			@Override
			public void onSuccess(ResponseInfo<String> responseInfo) {
				result = responseInfo.result.toString() ;
			}

			@Override
			public void onFailure(HttpException error, String msg) {

			}
		});

		return result ;
	}

	/**
	 * 带上传文件的 Post请求   异步的
	 * @param url
	 * @param userkey
	 * @param str
	 * @param sign
	 * @param picString  文件的地址
	 * @return
	 */
	public String xutilsFilePost( String url , String userkey , String str , String sign , String picString ){
		RequestParams params = new RequestParams();
		params.addQueryStringParameter("userkey", userkey );
		params.addQueryStringParameter("str", str );
		params.addQueryStringParameter("sign", sign );

		// 只包含字符串参数时默认使用BodyParamsEntity，
		// 类似于UrlEncodedFormEntity（"application/x-www-form-urlencoded"）。
		//params.addBodyParameter("name", "value");

		// 加入文件参数后默认使用MultipartEntity（"multipart/form-data"），
		// 如需"multipart/related"，xUtils中提供的MultipartEntity支持设置subType为"related"。
		// 使用params.setBodyEntity(httpEntity)可设置更多类型的HttpEntity（如：
		// MultipartEntity,BodyParamsEntity,FileUploadEntity,InputStreamUploadEntity,StringEntity）。
		// 例如发送json参数：params.setBodyEntity(new StringEntity(jsonStr,charset));
		params.addBodyParameter("picture", new File( picString )) ;

		com.lidroid.xutils.HttpUtils http = new com.lidroid.xutils.HttpUtils();
		http.send(HttpRequest.HttpMethod.POST ,
				url ,
				params,
				new RequestCallBack<String>() {

			@Override
			public void onStart() {
			}

			@Override
			public void onLoading(long total, long current, boolean isUploading) {
			}

			@Override
			public void onSuccess(ResponseInfo<String> responseInfo) {
				result = responseInfo.result.toString() ;
			}

			@Override
			public void onFailure(HttpException error, String msg) {
			}
		});

		return result ;
	}

	//-------------------以上的代码 是 异步请求的， 以下的代码是同步请求的-------------------------//

	/**
	 * Get同步请求 必须在异步块儿中执行
	 * @param url
	 * @param userkey
	 * @param str
	 * @param sign
	 * @return
	 */
	private String xutilsGetSync(String url , String userkey , String str , String sign ) {
		RequestParams params = new RequestParams();
		params.addQueryStringParameter("userkey", userkey );
		params.addQueryStringParameter("str", str );
		params.addQueryStringParameter("sign", sign );
		HttpUtils http = new HttpUtils() ;
		http.configCurrentHttpCacheExpiry(1000 * 10); //设置超时时间  
		try {
			ResponseStream responseStream = http.sendSync(HttpRequest.HttpMethod.GET,
					url , 
					params ) ;
			//int statusCode = responseStream.getStatusCode();
			//Header[] headers = responseStream.getBaseResponse().getAllHeaders();
			return responseStream.readString();
		} catch (Exception e) {
			LogUtils.e(e.getMessage(), e);
		}
		return null;
	}
	
	/**
	 * Post同步请求 必须在异步块儿中执行
	 * @param url
	 * @param userkey
	 * @param str
	 * @param sign
	 * @return
	 */
	private String xutilsPostSync(String url , String userkey , String str , String sign ) {
		RequestParams params = new RequestParams();
		params.addQueryStringParameter("userkey", userkey );
		params.addQueryStringParameter("str", str );
		params.addQueryStringParameter("sign", sign );
		HttpUtils http = new HttpUtils() ;
		http.configCurrentHttpCacheExpiry(1000 * 10); //设置超时时间  
		try {
			ResponseStream responseStream = http.sendSync(HttpRequest.HttpMethod.POST ,
					url , 
					params ) ;
			//int statusCode = responseStream.getStatusCode();
			//Header[] headers = responseStream.getBaseResponse().getAllHeaders();
			return responseStream.readString();
		} catch (Exception e) {
			LogUtils.e(e.getMessage(), e);
		}
		return null;
	}
}