微信小程序wx.upload上传图片后台java

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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)

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