Box">

wx.chooseImage({
count: this.data.count[this.data.countIndex],success: function (res) {
console.log('ssssssssssssssssssssssssss')
//缓存下
wx.showToast({
title: '正在上传...',icon: 'loading',mask: true,duration: 2000,success: function (ress) {
console.log('成功加载动画');
}
})

console.log(res) 
that.setData({ 
 imageList: res.tempFilePaths 
}) 
//<a href="https://www.jb51.cc/tag/huoqu/" target="_blank" class="keywords">获取</a><a href="https://www.jb51.cc/tag/diyizhangtupian/" target="_blank" class="keywords">第一张图片</a>地址 
var filep = res.tempFilePaths[0] 
//向服务器端<a href="https://www.jb51.cc/tag/shangchuan/" target="_blank" class="keywords">上传</a><a href="https://www.jb51.cc/tag/tupian/" target="_blank" class="keywords">图片</a> 
// getApp().data.servsers,这是在app.js<a href="https://www.jb51.cc/tag/wenjian/" target="_blank" class="keywords">文件</a>里定义的后端服务器地址 
wx.uploadFile({ 
 url: getApp().data.servsers + '/weixin/wx_upload.do',filePath: filep,name: 'file',formData: { 
  'user': 'test' 
 },success: function (res) { 
  console.log(res) 
  console.log(res.data) 
  var sss= JSON.parse(res.data) 
  var dizhi = sss.dizhi; 
  //<a href="https://www.jb51.cc/tag/shuchu/" target="_blank" class="keywords">输出</a><a href="https://www.jb51.cc/tag/tupian/" target="_blank" class="keywords">图片</a>地址 
  console.log(dizhi); 
  that.setData({ 
   "dizhi": dizhi 
  }) 

  //do something  
 },fail: function (err) { 
  console.log(err) 
 }  
  }); 

}
})
},previewImage: function (e) {
var current = e.target.dataset.src

wx.previewImage({

current: current,urls: this.data.imageList
})
}

获取当前日期时间的string类型用于文件名防重复 public String dates(){ Date currentTime = new Date(); SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmss"); String dateString = formatter.format(currentTime); return dateString; } @RequestMapping("wx_upload.do") public void uploadPicture(HttpServletRequest request,HttpServletResponse response,PrintWriter writer) throws Exception { System.out.println("进入get方法！"); //获取从前台传过来得图片 MultipartHttpServletRequest req =(MultipartHttpServletRequest)request; MultipartFile multipartFile = req.getFile("file"); //获取图片的文件类型 String houzhu=multipartFile.getContentType(); int one = houzhu.lastIndexOf("/"); System.out.println(houzhu.substring((one+1),houzhu.length())); System.out.println(multipartFile.getName()); //根据获取到的文件类型截取出图片后缀 String type=houzhu.substring((one+1),houzhu.length()); System.out.println(multipartFile.getContentType());

String filename; 

// request.getRealPath获取我们项目的根地址在加上我们要保存的地址
String realPath = request.getRealPath("/upload/wximg/");
try {
File dir = new File(realPath);
if (!dir.exists()) {
dir.mkdir();
}
//获取到当前的日期时间用户生成文件名防止文件名重复
String filedata=this.dates();
//生成一个随机数来防止文件名重复
int x=(int)(Math.random()*1000);
filename="zhongshang"+x+filedata;
System.out.println(x);
将文件的地址和生成的文件名拼在一起
File file = new File(realPath,filename+"."+type);
multipartFile.transferTo(file);
//将图片在项目中的地址和isok状态储存为json格式返回给前台，由于公司项目中没有fastjson只能用这个
JSONObject jsonObject=new JSONObject();
jsonObject.put("isok",1);
jsonObject.put("dizhi","/upload/wximg/"+filename+"."+type);

  writer.write(jsonObject.toString()); 
} catch (IOException e) { 
  e.printStackTrace(); 
} catch (IllegalStateException e) { 
  e.printStackTrace(); 
} 

}