微信开发，求新增永久素材接口的java调用示例
新增临时素材接口可以调通，但是新增永久素材接口就是调不通。实在走投无路了。
我是用这个方法调用的
public static String formUpload(String urlStr, Map<String, String> textMap,
Map<String, String> fileMap) {
String res = "";
HttpURLConnection conn = null;
String BOUNDARY = "---------------------------"+ System.currentTimeMillis(); //boundary就是request头和上传文件内容的分隔符
try {
URL url = new URL(urlStr);
conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(20000);
conn.setReadTimeout(30000);
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setUseCaches(false);
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.71 Safari/537.36");
conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);
OutputStream out = new DataOutputStream(conn.getOutputStream());
// text
if (textMap != null) {
StringBuffer strBuf = new StringBuffer();
Iterator iter = textMap.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
String inputName = (String) entry.getKey();
String inputValue = (String) entry.getValue();
if (inputValue == null) {
continue;
}
strBuf.append("rn").append("--").append(BOUNDARY).append(
"rn");
strBuf.append("Content-Disposition: form-data; name=""
+ inputName + ""rnrn");
strBuf.append(inputValue);
}
out.write(strBuf.toString().getBytes("utf-8"));
}
// file
if (fileMap != null) {
Iterator iter = fileMap.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
String inputName = (String) entry.getKey();
String inputValue = (String) entry.getValue();
if (inputValue == null) {
continue;
}
File file = new File(inputValue);
String filename = file.getName();
String contentType = new MimetypesFileTypeMap()
.getContentType(file);
if (filename.endsWith(".png")) {
contentType = "image/png";
}else if(filename.endsWith(".jpg")){
contentType = "image/jpeg";
}else if(filename.endsWith(".mp4")){
contentType = "video/mpeg4";
}
if (contentType == null || contentType.equals("")) {
contentType = "application/octet-stream";
}
StringBuffer strBuf = new StringBuffer();
strBuf.append("rn").append("--").append(BOUNDARY).append("rn");
strBuf.append("Content-Disposition: form-data; name=""
+ inputName + ""; filename="" + filename
+ ""rn");
strBuf.append("Content-Type:" + contentType + "rnrn");
out.write(strBuf.toString().getBytes("utf-8"));
DataInputStream in = new DataInputStream(
new FileInputStream(file));
int bytes = 0;
byte[] bufferOut = new byte[1024];
while ((bytes = in.read(bufferOut)) != -1) {
out.write(bufferOut, 0, bytes);
}
in.close();
}
}
byte[] endData = ("rn--" + BOUNDARY + "--rn").getBytes("utf-8");
out.write(endData);
out.flush();
out.close();
// 读取返回数据
StringBuffer strBuf = new StringBuffer();
BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line = null;
while ((line = reader.readLine()) != null) {
strBuf.append(line).append("n");
}
res = strBuf.toString();
reader.close();
reader = null;
} catch (Exception e) {
System.out.println("发送POST请求出错。" + urlStr);
e.printStackTrace();
} finally {
if (conn != null) {
conn.disconnect();
conn = null;
}
}
System.out.println(res);
JSONObject jsonObj = JSONObject.fromObject(res);
String mediaId = jsonObj.getString("media_id");
return mediaId;
}看微信的接口文档我也是醉了,都是Php示例。这里面说要提交两个表单，到底怎么弄啊。
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评论（9）
把这个form-data; name=""+ inputName +"";改为form-data; name=""+media+"";
获取永久图片素材的接口有没有人调通，求指教
我后来直接在linux里使用curl命令，发现根本调不通，无解
微信小白路过，帮你顶下。
求教，同样遇到这个问题，上传永久素材，缺少多媒体文件
帮忙顶。请教下新增其他类型的永久素材时，
media参数要传些什么东西。
我去。。。沉了~
自己顶
这个方法上传永久的可以，临时的有问题
我找到办法了
public static String postFile(String url, String filePath, String title,String introduction) { File file = new File(filePath); if(!file.exists()) return null; String result = null; try { URL url1 = new URL(url); HttpURLConnection conn = (HttpURLConnection) url1.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 + "rn").getBytes()); output.write(String.format("Content-Disposition: form-data; name="media"; filename="%s"rn", file.getName()).getBytes()); output.write("Content-Type: video/mp4 rnrn".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); } output.write(("--" + boundary + "rn").getBytes()); output.write("Content-Disposition: form-data; name="description";rnrn".getBytes()); output.write(String.format("{"title":"%s", "introduction":"%s"}",title,introduction).getBytes()); output.write(("rn--" + boundary + "--rnrn").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(); System.out.println(result); } catch (ClientAbortExceptione) { logger.error("postFile，不支持http协议",e); } catch (IOException e) { logger.error("postFile数据传输失败",e); } logger.info("{}: result={}",url,result); return result; } public static void main(String[] args) { String url = "https://api.weixin.qq.com/cgi-bin/material/add_material?access_token=" + "U_0AIUrkfmVk0LXlaGu0lx5CXx-_4&type=video"; postFile(url, "/Users/jlusoft/Desktop/test.mp4","test","dfd"); }