post请求
- public static String httpPostWithJSON(String url, String json)
- throws Exception {
- String result = null;
- // 将JSON进行UTF-8编码,以便传输中文
- String encoderJson = URLEncoder.encode(json, HTTP.UTF_8);
- DefaultHttpClient httpClient = new DefaultHttpClient();
- HttpPost httpPost = new HttpPost(url);
- httpPost.addHeader(HTTP.CONTENT_TYPE, APPLICATION_JSON);
- StringEntity se = new StringEntity(json);
- se.setContentType(CONTENT_TYPE_TEXT_JSON);
- se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,
- APPLICATION_JSON));
- httpPost.setEntity(se);
- // httpClient.execute(httpPost);
- HttpResponse response = httpClient.execute(httpPost);
- if (response != null) {
- HttpEntity resEntity = response.getEntity();
- if (resEntity != null) {
- InputStream instreams = resEntity.getContent();
- saveToImgByInputStream(instreams, "D:\\", "apr.jpg");
- }
- }
- return result;
- }
将二进制转换成文件保存
- /**
- * 将二进制转换成文件保存
- * @param instreams 二进制流
- * @param imgPath 图片的保存路径
- * @param imgName 图片的名称
- * @return
- * 1:保存正常
- * 0:保存失败
- */
- public static int saveToImgByInputStream(InputStream instreams,String imgPath,String imgName){
- int stateInt = 1;
- if(instreams != null){
- try {
- File file=new File(imgPath,imgName);//可以是任何图片格式.jpg,.png等
- FileOutputStream fos=new FileOutputStream(file);
- byte[] b = new byte[1024];
- int nRead = 0;
- while ((nRead = instreams.read(b)) != -1) {
- fos.write(b, 0, nRead);
- }
- fos.flush();
- fos.close();
- } catch (Exception e) {
- stateInt = 0;
- e.printStackTrace();
- } finally {
- }
- }
- return stateInt;
- }