Android实现多参数文件和数据上传

本文实例为大家分享了Android实现多参数文件和数据上传的具体代码，供大家参考，具体内容如下

上代码：

/** * 可传入多张图片和参数 *  * @param actionUrl *   发送地址 * @param params *   文本参数 * @param files *   文件参数 * @return * @throws IOException */ public static String mulpost(String actionUrl, Map params, Map files) throws IOException { String result = "";  String BOUNDARY = java.util.UUID.randomUUID().toString(); String PREFIX = "--", LINEND = "\r\n"; String MULTIPART_FROM_DATA = "multipart/form-data"; String CHARSET = "UTF-8"; URL uri = new URL(actionUrl); HttpURLConnection conn = (HttpURLConnection) uri.openConnection(); conn.setReadTimeout(5 * 1000); conn.setDoInput(true);// 允许输入 conn.setDoOutput(true);// 允许输出 conn.setUseCaches(false); conn.setRequestMethod("POST"); // Post方式 conn.setRequestProperty("connection", "keep-alive"); conn.setRequestProperty("Charsert", "UTF-8"); conn.setRequestProperty("Content-Type", MULTIPART_FROM_DATA + ";boundary=" + BOUNDARY);  // 首先组拼文本类型的参数 StringBuilder sb = new StringBuilder(); for (Map.Entry entry : params.entrySet()) { sb.append(PREFIX); sb.append(BOUNDARY); sb.append(LINEND); sb.append("Content-Disposition: form-data; name=\""  + entry.getKey() + "\"" + LINEND); sb.append("Content-Type: text/plain; charset=" + CHARSET + LINEND); sb.append("Content-Transfer-Encoding: 8bit" + LINEND); sb.append(LINEND); sb.append(entry.getValue()); sb.append(LINEND); }  DataOutputStream outStream = new DataOutputStream( conn.getOutputStream()); outStream.write(sb.toString().getBytes());  // 发送文件数据 if (files != null) for (Map.Entry file : files.entrySet()) { StringBuilder sb1 = new StringBuilder(); sb1.append(PREFIX); sb1.append(BOUNDARY); sb1.append(LINEND); sb1.append("Content-Disposition: form-data; name=\"file\"; filename=\""  + file.getKey() + "\"" + LINEND); sb1.append("Content-Type: application/octet-stream; charset="  + CHARSET + LINEND); sb1.append(LINEND); outStream.write(sb1.toString().getBytes()); InputStream is = new FileInputStream(file.getValue()); byte[] buffer = new byte[1024]; int len = 0; while ((len = is.read(buffer)) != -1) {  outStream.write(buffer, 0, len); }  is.close(); outStream.write(LINEND.getBytes()); }  // 请求结束标志 byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINEND).getBytes(); outStream.write(end_data); outStream.flush();  InputStream is = conn.getInputStream(); InputStreamReader isr = new InputStreamReader(is, "utf-8"); BufferedReader br = new BufferedReader(isr); result = br.readLine(); outStream.close(); conn.disconnect(); return result; }

方法就是这样的。

使用时可封装在自己的类里直接调用即可，记得加网络访问和读取系统文件的权限哦。

由于上传是耗时操作，必须得要弄在另一个线程中调用才可以。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。

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