SpringBoot----访问静态资源&&文件上传

一.访问静态资源

1.SpringBoot 从 classpath/static 的目录--------注意目录名称必须是 static

2. ServletContext 根目录下-------在 src/main/webapp 目录名称必须要 webapp

二.文件上传

@RestController //表示该类下的方法的返回值会自动做 json 格式的转换

1. 编写 Controller  

package com.bjsxt.controller; import java.io.File; import java.util.HashMap; import java.util.Map; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.multipart.MultipartFile; /** * SpringBoot文件上传 * * */ //@Controller @RestController //表示该类下的方法的返回值会自动做json格式的转换 public class FileUploadController { /* * 处理文件上传 */ @RequestMapping("/fileUploadController") public Map<String, Object> fileUpload(MultipartFile filename)throws Exception{ System.out.println(filename.getOriginalFilename()); filename.transferTo(new File("e:/"+filename.getOriginalFilename())); Map<String, Object> map = new HashMap<>(); map.put("msg", "ok"); return map; } }

2. 编写启动类

package com.bjsxt; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; /** * SpringBoot文件上传 * * */ @SpringBootApplication public class App { public static void main(String[] args) { SpringApplication.run(App.class, args); } }

3. 设置上传文件大小的默认值

application.properties

spring.http.multipart.maxFileSize=200MB spring.http.multipart.maxRequestSize=200MB

4.upload.html

<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>文件上传</title> </head> <body> <form action="fileUploadController" method="post" enctype="multipart/form-data"> 上传文件：<input type="file" name="filename"/><br/> <input type="submit"/> </form> </body> </html>