I use httpClient interface test process, encountered the file upload interface, the previous article has completed the binary stream upload picture code, but has not encapsulated into a fixed method of use, today to share the encapsulated method, for your reference.

/** * set binary stream entities, The params parameter is "file * * @param httpPost * httpPsot request * @param params * request parameter * @param file */ public void"setMultipartEntityEntity(HttpPost httpPost, JSONObject params, File file) { String fileName = getFileName(file); InputStream inputStream = null; try { inputStream = new FileInputStream(file); } catch (FileNotFoundException e) { e.printStackTrace(); } Iterator<String> keys = params.keys(); / / traverse params MultipartEntityBuilder builder = MultipartEntityBuilder parameters and values. The create (); // Create a New Builder objectwhile (keys.hasNext()) {
			String key = keys.next();
			String value = params.getString(key);
			if (value.equals("file")) {
				builder.addBinaryBody(key, inputStream, ContentType.create("multipart/form-data"), fileName); // Set stream parameters}else {
				StringBody body = new StringBody(value, ContentType.create("text/plain", Consts.UTF_8)); // Set the normal parameter Builder.addPart (key, body); } } HttpEntity entity = builder.build(); // generate entity httpPost.setentity (entity); // set entity}Copy the code

This method is only for Linux, because Windows uses “\” in the file path, in the code is “\”, so Windows friends should pay attention.

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