android 向服务器Get和Post请求的两种方式,android向服务器发送文件,自己组装协议和借助第三方开源
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时间：2015年06月11日
/** * @author [email protected] * @time 20140606 */ package com.intbird.utils; import java.io.BufferedReader; import java.io.DataOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; import java.net.URLConnection; import java.net.URLDecoder; import java.net.URLEncoder; import java.nio.charset.Charset; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.mime.MultipartEntity; import org.apache.http.entity.mime.content.FileBody; import org.apache.http.entity.mime.content.StringBody; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.util.EntityUtils; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Handler; import android.os.Message; public class ConnInternet { /** * 开始连接 */ public static int HTTP_STATUS_START=0; /** * 连接过程出错 */ public static int HTTP_STATUS_ERROR=400; /** * 请求成功,返回数据 */ public static int HTTP_STATUS_REULTOK=200; /** * 服务器未响应 */ public static int HTTP_STATUS_NORESP=500; /** * 普通GET请求 * @param api * @param callBack */ public static void get1(final String api,final ConnInternetCallback callBack) { final Handler handler=getHandle(api, callBack); new Thread(){ @Override public void run() { Message msg=handler.obtainMessage(HTTP_STATUS_START, "开始连接"); try { URL url = new URL(api); HttpURLConnection urlConn = (HttpURLConnection) url.openConnection(); int resCode=urlConn.getResponseCode(); if(resCode!=HTTP_STATUS_REULTOK){ msg.what=HTTP_STATUS_NORESP; msg.obj=resCode; handler.sendMessage(msg); return ; } InputStreamReader inStream=new InputStreamReader(urlConn.getInputStream()); BufferedReader buffer=new BufferedReader(inStream); String result=""; String inputLine=null; while((inputLine=buffer.readLine())!=null){ result+=inputLine; } msg.what=HTTP_STATUS_REULTOK; msg.obj=URLDecoder.decode(result,"UTF-8"); inStream.close(); urlConn.disconnect(); } catch (Exception ex) { msg.what=HTTP_STATUS_ERROR; msg.obj=ex.getMessage().toString(); } finally{ handler.sendMessage(msg); } } }.start(); } public void get3(final String api,final ConnInternetCallback callBack) { final Handler handler=getHandle(api, callBack); new Thread(){ @Override public void run() { Message msg=handler.obtainMessage(HTTP_STATUS_START, "开始连接"); try { HttpGet httpGet=new HttpGet(api); HttpClient httpClient = new DefaultHttpClient(); HttpResponse httpResp = httpClient.execute(httpGet); int resCode=httpResp.getStatusLine().getStatusCode(); if(resCode!=HTTP_STATUS_REULTOK){ msg.what=HTTP_STATUS_NORESP; msg.obj=resCode; handler.sendMessage(msg); return ; } msg.what=HTTP_STATUS_REULTOK; msg.obj= EntityUtils.toString(httpResp.getEntity()); }catch (Exception e) { msg.what=HTTP_STATUS_ERROR; msg.obj= e.getMessage(); } finally{ handler.sendMessage(msg); } } }.start(); } private static Handler getHandle(final String api,final ConnInternetCallback callBack){ return new Handler() { @Override public void handleMessage(Message message) { //不 在 这里写! callBack.callBack(message.what,api, message.obj.toString()); } }; } /** * 简单类型,只进行文字信息的POST; * @param api api地址 * @param params 仅字段参数 * @param callBack 返回调用; */ public static void post1(final String api,final HashMap<String,String> params,final ConnInternetCallback callBack){ final Handler handler=getHandle(api, callBack); new Thread(){ @Override public void run() { Message msg=handler.obtainMessage(HTTP_STATUS_START,"开始连接"); try { URL url=new URL(api); HttpURLConnection urlConn = (HttpURLConnection) url.openConnection(); urlConn.setDoInput(true); urlConn.setDoOutput(true); urlConn.setRequestMethod("POST"); urlConn.setUseCaches(false); urlConn.setInstanceFollowRedirects(true); urlConn.setRequestProperty("Content-Type","application/x-www-form-urlencoded"); urlConn.setRequestProperty("Charset", "UTF-8"); urlConn.connect(); DataOutputStream out = new DataOutputStream(urlConn.getOutputStream()); Iterator<String> iterator=params.keySet().iterator(); while(iterator.hasNext()){ String key= iterator.next(); String value= URLEncoder.encode(params.get(key),"UTF-8"); out.write((key+"="+value+"&").getBytes()); } out.flush(); out.close(); int resCode=urlConn.getResponseCode(); if(resCode!=HTTP_STATUS_REULTOK){ msg.what=HTTP_STATUS_NORESP; msg.obj=resCode; handler.sendMessage(msg); return ; } String result=""; String readLine=null; InputStreamReader inputStream=new InputStreamReader(urlConn.getInputStream()); BufferedReader bufferReader=new BufferedReader(inputStream); while((readLine=bufferReader.readLine())!=null){ result+=readLine; } msg.what=HTTP_STATUS_REULTOK; msg.obj=URLDecoder.decode(result,"UTF-8"); inputStream.close(); bufferReader.close(); urlConn.disconnect(); }catch(Exception ex){ msg.what=HTTP_STATUS_ERROR; msg.obj=ex.getMessage().toString()+"."; } finally{ handler.sendMessage(msg); } } }.start(); } /** * 自定义文字和文件传输协议[示例在函数结尾]; * @param apiUrl api地址 * @param mapParams 文字字段参数 * @param listUpFiles 多文件参数 * @param callBack 返回调用; */ public static void post2(final String apiUrl,final HashMap<String,String> mapParams,final ArrayList<ConnInternetUploadFile> listUpFiles,ConnInternetCallback callBack){ final Handler handler=getHandle(apiUrl, callBack); new Thread(new Runnable() { public void run() { Message msg=handler.obtainMessage(HTTP_STATUS_START, "开始连接"); String BOUNDARY="———7d4a6454354fe54scd"; String PREFIX="--"; String LINE_END="\r\n"; try{ URL url=new URL(apiUrl); HttpURLConnection urlConn=(HttpURLConnection) url.openConnection(); urlConn.setDoOutput(true); urlConn.setDoInput(true); urlConn.setUseCaches(false); urlConn.setRequestMethod("POST"); urlConn.setRequestProperty("Connection", "Keep-Alive"); urlConn.setRequestProperty("Charset", "UTF-8"); urlConn.setRequestProperty("Content-Type","multipart/form-data ;boundary="+BOUNDARY); DataOutputStream outStream=new DataOutputStream(urlConn.getOutputStream()); for(Map.Entry<String,String> entry:mapParams.entrySet()){ StringBuilder sbParam=new StringBuilder(); sbParam.append(PREFIX); sbParam.append(BOUNDARY); sbParam.append(LINE_END); sbParam.append("Content-Disposition:form-data;name=\""+ entry.getKey()+"\""+LINE_END); sbParam.append("Content-Transfer-Encoding: 8bit" + LINE_END); sbParam.append(LINE_END); sbParam.append(entry.getValue()); sbParam.append(LINE_END); outStream.write(sbParam.toString().getBytes()); } for(ConnInternetUploadFile file:listUpFiles){ StringBuilder sbFile=new StringBuilder(); sbFile.append(PREFIX); sbFile.append(BOUNDARY); sbFile.append(LINE_END); sbFile.append("Content-Disposition:form-data;name=\""+file.getFormname()+"\";filename=\""+file.getFileName()+"\""+LINE_END); sbFile.append("Content-type:"+file.getContentType()+"\""+LINE_END); outStream.write(sbFile.toString().getBytes()); writeFileToOutStream(outStream,file.getFileUrl()); outStream.write(LINE_END.getBytes("UTF-8")); } byte[] end_data=(PREFIX+BOUNDARY+PREFIX+LINE_END).getBytes("UTF-8"); outStream.write(end_data); outStream.flush(); outStream.close(); int resCode=urlConn.getResponseCode(); if(resCode!=HTTP_STATUS_REULTOK){ msg.what=HTTP_STATUS_NORESP; msg.obj=resCode; handler.sendMessage(msg); return ; } String result=""; String readLine=null; InputStreamReader inputStream=new InputStreamReader(urlConn.getInputStream()); BufferedReader bufferReader=new BufferedReader(inputStream); while((readLine=bufferReader.readLine())!=null){ result+=readLine; } msg.what=HTTP_STATUS_REULTOK; msg.obj=URLDecoder.decode(result,"UTF-8"); inputStream.close(); bufferReader.close(); urlConn.disconnect(); }catch(Exception ex){ msg.what=HTTP_STATUS_ERROR; msg.obj=ex.getMessage().toString(); } finally{ handler.sendMessage(msg); } } }).start(); // HashMap<String,String> params=new HashMap<String, String>(); // params.put("pid", fileHelper.getShareProf("PassportId")); // params.put("json",postJson(text)); // ArrayList<UploadFile> uploadFiles=new ArrayList<UploadFile>(); // if(url.length()>0){ // UploadFile upfile=new UploadFile(url,url,"Images"); // uploadFiles.add(upfile); // } // Internet.post(Api.api_messageCreate, params,uploadFiles,new InternetCallback() { // @Override // public void callBack(int msgWhat, String api, String result) { // if(msgWhat==Internet.HTTP_STATUS_OK){ // //跟新数据 // adapter.notifyDataSetChanged(); // //显示没有数据 // }else showToast("网络错误"); // } // }); } /** * 第三方Apache集成POST * @param url api地址 * @param mapParams 参数 * @param callBack */ public static void post3(final String url, final HashMap<String,String> mapParams,final HashMap<String,String> mapFileInfo,ConnInternetCallback callBack) { final Handler handler=getHandle(url , callBack); new Thread() { @Override public void run() { Message msg=handler.obtainMessage(HTTP_STATUS_START, "开始连接"); try { HttpPost httpPost = new HttpPost(url); //多类型; MultipartEntity multipartEntity = new MultipartEntity(); //字段 Iterator<?> it=mapParams.keySet().iterator(); while(it.hasNext()){ String key=(String) it.next(); String value=mapParams.get(key); multipartEntity.addPart(key,new StringBody(value,Charset.forName("UTF-8"))); } //文件 it=mapFileInfo.keySet().iterator(); while(it.hasNext()){ String key=(String)it.next(); String value=mapFileInfo.get(key); multipartEntity.addPart(key, new FileBody(new File(value))); } httpPost.setEntity(multipartEntity); HttpClient httpClient = new DefaultHttpClient(); HttpResponse httpResp = httpClient.execute(httpPost); int resCode=httpResp.getStatusLine().getStatusCode(); if(resCode!=HTTP_STATUS_REULTOK){ msg.what=HTTP_STATUS_NORESP; msg.obj=resCode; handler.sendMessage(msg); return ; } msg.what=HTTP_STATUS_REULTOK; msg.obj= EntityUtils.toString(httpResp.getEntity()); }catch (Exception e) { msg.what=HTTP_STATUS_ERROR; msg.obj= e.getMessage(); } finally{ handler.sendMessage(msg); } } }.start(); } public static Bitmap loadBitmapFromNet(String imgUrl,BitmapFactory.Options options){ Bitmap bitmap = null; URL imageUrl = null; if (imgUrl == null || imgUrl.length() == 0) return null; try { imageUrl = new URL(imgUrl); URLConnection conn = imageUrl.openConnection(); conn.setDoInput(true); conn.connect(); InputStream is = conn.getInputStream(); int length = conn.getContentLength(); if (length != -1) { byte[] imgData = new byte[length]; byte[] temp = new byte[512]; int readLen = 0; int destPos = 0; while ((readLen = is.read(temp)) != -1) { System.arraycopy(temp, 0, imgData, destPos, readLen); destPos += readLen; } bitmap = BitmapFactory.decodeByteArray(imgData, 0, imgData.length,options); options.inJustDecodeBounds=false; bitmap = BitmapFactory.decodeByteArray(imgData, 0, imgData.length,options); } } catch (IOException e) { return null; } return bitmap; } public static void writeFileToOutStream(DataOutputStream outStream,String url){ try { InputStream inputStream = new FileInputStream(new File(url)); int ch; while((ch=inputStream.read())!=-1){ outStream.write(ch); } inputStream.close(); } catch (Exception e) { e.printStackTrace(); } } public interface ConnInternetCallback{ public void callBack(int msgWhat,String api,String result); } public class ConnInternetUploadFile { private String filename; private String fileUrl; private String formname; private String contentType = "application/octet-stream"; //image/jpeg public ConnInternetUploadFile(String filename, String fileUrl, String formname) { this.filename = filename; this.fileUrl=fileUrl; this.formname = formname; } public String getFileUrl() { return fileUrl; } public void setFileUrl(String url) { this.fileUrl=url; } public String getFileName() { return filename; } public void setFileName(String filename) { this.filename = filename; } public String getFormname() { return formname; } public void setFormname(String formname) { this.formname = formname; } public String getContentType() { return contentType; } public void setContentType(String contentType) { this.contentType = contentType; } } }
android 向服务器Get和Post请求的两种方式,android向服务器发送文件,自己组装协议和借助第三方开源,,5-wow.com
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