/**

* 上傳永久素材

* @paramfile

* @paramtype

* @paramtitle type為video時(shí)需要,其他類(lèi)型設(shè)null

* @paramintroduction type為video時(shí)需要,其他類(lèi)型設(shè)null

* @return{"media_id":MEDIA_ID,"url":URL}

*/

public static String uploadPermanentMaterial(File file, String type, String title, String introduction) {

String access_token = "10__IK_6jLYuvdvIwdftOObUbTt8HcKZER8UBjvxD6CVpbJRBYGtGQ-HmqfnSrg4YBxQ4wBS4DPaksWeQzte1jmh1g1zLULAOA4leL5iekLX5tdQYlqRQJtSKOh6FeratK4WBlNT0cXdDXPdplKFQHfAIAOZQ";

String url = "https://api.weixin.qq.com/cgi-bin/material/add_material?access_token="

+ access_token + "&type=" + type;

String result = null;

try {

URL uploadURL = new URL(url);

HttpURLConnection conn = (HttpURLConnection) uploadURL.openConnection();

conn.setConnectTimeout(5000);

conn.setReadTimeout(30000);

conn.setDoOutput(true);

conn.setDoInput(true);

conn.setUseCaches(false);

conn.setRequestMethod("POST");

conn.setRequestProperty("Connection", "Keep-Alive");

conn.setRequestProperty("Cache-Control", "no-cache");

String boundary = "-----------------------------" + System.currentTimeMillis();

conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);

OutputStream output = conn.getOutputStream();

output.write(("--" + boundary + "\r\n").getBytes());

output.write(String.format("Content-Disposition: form-data; name=\"media\"; filename=\"%s\"\r\n", file.getName()).getBytes());

output.write("Content-Type: video/mp4 \r\n\r\n".getBytes());

byte[] data = new byte[1024];

int len = 0;

FileInputStream input = new FileInputStream(file);

while ((len = input.read(data)) > -1) {

output.write(data, 0, len);

}

/*對(duì)類(lèi)型為video的素材進(jìn)行特殊處理*/

if ("video".equals(type)) {

output.write(("--" + boundary + "\r\n").getBytes());

output.write("Content-Disposition: form-data; name=\"description\";\r\n\r\n".getBytes());

output.write(String.format("{\"title\":\"%s\", \"introduction\":\"%s\"}", title, introduction).getBytes());

}

output.write(("\r\n--" + boundary + "--\r\n\r\n").getBytes());

output.flush();

output.close();

input.close();

InputStream resp = conn.getInputStream();

StringBuffer sb = new StringBuffer();

while ((len = resp.read(data)) > -1)

sb.append(new String(data, 0, len, "utf-8"));

resp.close();

result = sb.toString();

} catch (IOException e) {

//....

}

return result;

}

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