微信小程序wx.upload上传图片后台java

前台代码:

bindPhoto(e) {
var that = this;
wx.chooseImage({
count: 1,
sizeType: ['original','compressed'],// 指定原图或者压缩图
sourceType: ['album',
'camera'], // 指定图片来源
success: function (res) {
var tempFilePaths = res.tempFilePaths;
wx.uploadFile({
url: 'http://192.168.31.111:8007/goods/wx_upload.do',
filePath: tempFilePaths[0],
name: 'file',
header: { "Content-Type":
"multipart/form-data" },
formData:{
'session_token': token
},
success:function(res){
var cur_data = res.data;
console.log(cur_data.fileName);

},
fail: function (res) {
console.log('上传失败');
}
})
}
})
},

后台代码

/*微信小程序上传图片测试*/
@RequestMapping("wx_upload.do")
public void wx_upload(HttpServletRequest request, HttpServletResponse response) throws Exception {
request.setCharacterEncoding("utf-8");  //设置编码
//获得磁盘文件条目工厂
DiskFileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
String fileId = null;
String json = "{\"success\":false,\"fileName\":\"" + fileId + "\"}";
String pathUrl = FSDefaultMgr.E_DEFAULT.getDefaultUploadPathUrl();//获取图片服务器路径
InputStream inStream = null;
try {
//可以上传多个文件
List<FileItem> list = (List<FileItem>)upload.parseRequest(request);
for(FileItem item : list){
//获取表单的属性名字
String name = item.getFieldName();
//如果获取的 表单信息是普通的 文本 信息
if(item.isFormField()){
//获取用户具体输入的字符串 ，名字起得挺好，因为表单提交过来的是 字符串类型的
String value = item.getString() ;
request.setAttribute(name, value);
}else {
//获取路径名
String filename = item.getName();
request.setAttribute(name, filename);
inStream = item.getInputStream() ;
}
}
ByteArrayOutputStream swapStream = new ByteArrayOutputStream();
byte[] buff = new byte[100];
int rc = 0;
while ((rc = inStream.read(buff, 0, 100)) > 0) {
swapStream.write(buff, 0, rc);
}
byte[] bytes = swapStream.toByteArray();
fileId = FastDFSClient.uploadFile(bytes, "20161545454.png", null);
if (fileId != null) {
json = "{\"success\":true,\"pathUrl\":\"" + pathUrl + "\",\"fileName\":\"" + fileId + "\"}";
}
response.getWriter().write(json);
response.getWriter().flush();
response.getWriter().close();
}catch (Exception e) {
e.printStackTrace();
}
}

注意事项:(http://blog.csdn.net/lwphk/article/details/43015829)