1、新增临时素材，接口java代码：
/**
* 文件上传到微信服务器
* @param fileType 文件类型
* @param filePath 文件路径
* @return JSONObject
* @throws Exception
*/
public static JSONObject mediaUpload(String fileType, String filePath) throws Exception {
String result = null;
File file = new File(filePath);
if (!file.exists() || !file.isFile()) {
throw new IOException("文件不存在");
}
/**
* 第一部分
*/
URL urlObj = new URL("http://file.api.weixin.qq.com/cgi-bin/media/upload?access_token="+ getAccessToken().getToken() + "&type=" + fileType + "");
HttpURLConnection con = (HttpURLConnection) urlObj.openConnection();
con.setRequestMethod("POST"); // 以Post方式提交表单，默认get方式
con.setDoInput(true);
con.setDoOutput(true);
con.setUseCaches(false); // post方式不能使用缓存
// 设置请求头信息
con.setRequestProperty("Connection", "Keep-Alive");
con.setRequestProperty("Charset", "UTF-8");
// 设置边界
String BOUNDARY = "----------" + System.currentTimeMillis();
con.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);
// 请求正文信息
// 第一部分：
StringBuilder sb = new StringBuilder();
sb.append("--"); // 必须多两道线
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(con.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( con.getInputStream()));
String line = null;
while ((line = reader.readLine()) != null) {
System.out.println(line);
buffer.append(line);
}
if (result == null) {
result = buffer.toString();
}
} catch (IOException 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();
}
}
JSONObject jsonObj = JSONObject.fromObject(result);
return jsonObj;
}
2、获取access_token代码：
/**
* 获取access_token
*
* @return
*/
public static AccessToken getAccessToken() {
AccessToken accessToken = null;
String requestUrl = access_token_url.replace("APPID", WxConstants.APPID).replace("APPSECRET", WxConstants.SECRET);
JSONObject jsonObject = httpRequest(requestUrl, "GET", null);
// 如果请求成功
if (null != jsonObject) {
try {
accessToken = new AccessToken();
accessToken.setToken(jsonObject.getString("access_token"));
accessToken.setExpiresIn(jsonObject.getInt("expires_in"));
} catch (JSONException e) {
accessToken = null;
// 获取token失败
logger.error("获取token失败 errcode:{} errmsg:{}", jsonObject.getInt("errcode"), jsonObject.getString("errmsg"));
}
}
logger.debug("获取token成功accessToken：--------------------------------------"+accessToken.getToken());
return accessToken;
}
3、新增临时素材Controller层代码：
/**
* 新增临时素材
*/
public void save() {
ResultModel rm = new ResultModel();
WxMaterial wxMaterial = new WxMaterial();
String uploadDir = FileTool.getUploadFileDir();//存放目录
String filePath = PathKit.getWebRootPath() + uploadDir;
List<UploadFile> files = new ArrayList<UploadFile>();
try{
files = getFiles(filePath,MAXSize);
}catch (Exception e) {
e.printStackTrace();
rm.setMsg("附件大小必须在2M内");
renderJson(rm);
return;
}
String title = getPara("title");
String uuid = UniqueIDGenerator.getUUID();
try {
if(files!=null && files.size()>0){
UploadFile uploadFile = files.get(0);
logger.debug("文件路径："+filePath + "/" + uploadFile.getFileName());
JSONObject mediaUpload = WeixinUtil.mediaUpload(WeixinUtil.MEDIA_UPLOAD_IMAGE_, filePath + "/" + uploadFile.getFileName());
//上传失败
if (mediaUpload == null || (mediaUpload.get("errcode") !=null && 0 != mediaUpload.getInt("errcode"))) {
logger.debug("上传文件失败："+mediaUpload.toString());
}else{
WxMaterialBean wxMaterialBean = (WxMaterialBean)JSONObject.toBean( mediaUpload,WxMaterialBean.class );
//保存文件
String oldFileName=uploadFile.getFileName();
String suffixFile=FileTool.GetExtensionName(oldFileName);//
String newFileName=UniqueIDGenerator.getUUID()+"."+suffixFile;
boolean upResult=FileTool.RenameFile(filePath,oldFileName,newFileName);
String newPath = (uploadDir+File.separator+newFileName).replaceAll("\\\\", "/");
AttachFile attachFile = new AttachFile();
attachFile.set("uuid", uuid);
attachFile.set("content_type", uploadFile.getContentType());
attachFile.set("name", newFileName);
attachFile.set("old_name", oldFileName);
attachFile.set("field_name", uploadFile.getParameterName());
attachFile.set("path", newPath);
attachFile.save();
wxMaterial.set("uuid", uuid);
wxMaterial.set("title", title);
wxMaterial.set("type", wxMaterialBean.getType());
wxMaterial.set("media_id", wxMaterialBean.getMedia_id());
wxMaterial.set("created_at", wxMaterialBean.getCreated_at());
wxMaterial.save();
rm.setMsg("新增素材成功！");
rm.setSuccessCode();
renderJson(rm);
logger.debug("后台--新增临时素材成功-------------------"+(wxMaterial==null?"":wxMaterial.toString()));
return;
}
}
} catch (Exception e) {
e.printStackTrace();
}
rm.setFailCode();
rm.setMsg("新增素材失败！");
renderJson(rm);
logger.debug("后台--新增临时素材失败-------------------"+(wxMaterial==null?"":wxMaterial.toString()));
}