springMvc文件上传-微信小程序录音篇

2018-12-26 17:15:06  卢浮宫  版权声明:本文为站长原创文章,转载请写明出处


一、背景

    今天做微信小程序录音数据保存,原本是在小程序端转成base64编码保存到数据库的,但是结果发现两个弊端

    ①base64数据量过大资源消耗严重

    ②反向解析到微信端不好处理


二、解决思路

    所以就采用比较稳妥的方式:保存成文件资源,小程序端进行在线资源访问


三、不多说,直接上代码

    3.1、导入jar包两个commons-fileupload-1.3.3.jar和commons-io-2.6.jar


    3.2、在springmvc配置文件中添加bean如下

        <!-- 上传支持 -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- set the max upload size100MB -->
<property name="maxUploadSize">
<value>104857600</value>
</property>
<property name="maxInMemorySize">
<value>4096</value>
</property>
</bean>

     

    3.3、小程序端进行url请求

        //文件上传
wx.uploadFile({
url: "http://192.168.1.101:8089/Wxsynchro/voiceTest.do", // 仅为示例,非真实的接口地址
filePath: res.tempFilePath,
name: "file",
formData: {
user: "test"
},
success(res) {
const data = res.data
// do something
}
})


     3.4、服务端代码如下


        @RequestMapping(value = "voiceTest",method = { RequestMethod.POST,RequestMethod.GET})
public @ResponseBody String voiceTest(HttpServletRequest request, HttpServletResponse response) throws Exception{
System.out.println("上传");
MultipartHttpServletRequest req =(MultipartHttpServletRequest)request;
MultipartFile multipartFile = req.getFile("file");
System.out.println(multipartFile);
String realPath = "F:/media";
try {
File dir = new File(realPath);
if (!dir.exists()) {
dir.mkdir();
}
File file = new File(realPath,"test.mp3");
multipartFile.transferTo(file);
} catch (IOException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
}
return "";
}




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