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：
代码语言：javascript复制/**
* 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<String, String params,
Map<String, File files) throws IOException {
String result = "";
String BOUNDARY = java.util.UUID.randomUUID().toString();
String PREFIX = "--", LINEND = "rn";
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<String, String 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<String, File 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。
代码语言：javascript复制<uses-permission android:name="android.permission.INTERNET" /
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" / 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。
