微信开发实现多媒体上传时报{"errcode":40014,"errmsg":"invalid access_token"}

猫哥会说话 2015-04-30 07:23:08

public static JSONObject uploadMedia3(String requestUrl,String mediaFileUrl) throws IOException{

// 定义数据分割符
String boundary = "----------sunlight";
String result=null;
File file=new File("f:\\13343648273775267406.jpg");
if(!file.exists()||!file.isFile()){
throw new IOException("文件不存在");
}
URL url=new URL(requestUrl);
HttpURLConnection conn=(HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setUseCaches(false);
//设置请求头信息
conn.setRequestProperty("Connection", "keep-Alive");
conn.setRequestProperty("Charset", "utf-8");
//设置边界
boundary=boundary+System.currentTimeMillis();
conn.setRequestProperty("Content-Type","multipart/form-data;boundary="+boundary);
//请求正文信息
//第一部分：
StringBuffer sb=new StringBuffer();
sb.append("--");
sb.append(boundary);
sb.append("\r\n");
sb.append("Content-Disposition:form-data;name=\"file\";filename=\""+file.getName()+"\"\r\n");
sb.append("Content-Type:application/octet-stream\r\n\r\n");
byte[] head=sb.toString().getBytes("utf-8");
//获得输出流
OutputStream out=new DataOutputStream(conn.getOutputStream());
//输出表头
out.write(head);
//文件正文部分
// 把文件已流文件的方式推入到url中
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();
//结尾部分
byte[] foot=("\r\n--"+boundary+"--\r\n").getBytes("utf-8");
//定义最后数据分隔线
out.write(foot);
out.flush();
out.close();
StringBuffer buffer=new StringBuffer();
BufferedReader reader=null;
try {
// 定义BufferedReader输入流来读取URL的响应
reader=new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line=null;
while((line=reader.readLine())!=null){
buffer.append(line);
}
if(result==null){
result=buffer.toString();
}
} catch (Exception e) {
System.out.println("发送POST请求出现异常！" + e);
e.printStackTrace();
throw new IOException("数据读取异常");
}finally{
if(reader!=null){
reader.close();
}
}
System.out.println(result);
JSONObject jsonObject=new JSONObject().fromObject(result);
return jsonObject;
}

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