微信小程序上传图片 后台Java+spring接收

最近在做微信小程序图片上传，将代码上传，造福后来人，废话不多说，贴代码：
微信小程序端 chooseImage(){
wx.chooseImage({
success: function (res) {
var tempFilePaths = res.tempFilePaths
wx.uploadFile({
url: 'http://127.0.0.1:8888/pesss/weChat/uploadImage.do',
filePath: tempFilePaths[0],
name: 'file',
formData: {
'user': 'test'
},
success: function (res) {
var data = res.data
//do something
},fail:function(err){
console.log(err)
}
})
}
})
}java 端：import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;

@Controller
public class ImageTestWebchatController {

@RequestMapping(value = "/weChat/uploadImage", method = { RequestMethod.POST,RequestMethod.GET})
public ModelAndView uploadImage(HttpServletRequest request, HttpServletResponse response) throws IOException {
System.out.println("进入get方法！");

MultipartHttpServletRequest req =(MultipartHttpServletRequest)request;
MultipartFile multipartFile = req.getFile("file");

String realPath = "F:/image";
try {
File dir = new File(realPath);
if (!dir.exists()) {
dir.mkdir();
}
File file = new File(realPath,"aaa.jpg");
multipartFile.transferTo(file);
} catch (IOException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
}
return null;
}

}Java端的返回参数就自己拼写吧，文件路径、名称可以自行命名 ，因为是测试，这里就不写全了。
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