Spring Boot搭建文件上传服务的方法

  4.0.0 org.springframework.bootspring-boot-starter-parent1.3.3.RELEASEcom.test.springspring-boot1.0.0jarspring-boothttp://maven.apache.org UTF-81.81.8  org.springframework.bootspring-boot-starter-web commons-iocommons-io2.4

 package com.test.spring; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import javax.servlet.MultipartConfigElement; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.Part; import org.apache.commons.io.IOUtils; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.boot.context.embedded.MultipartConfigFactory; import org.springframework.context.annotation.Bean; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.ResponseBody; @Controller @EnableAutoConfiguration public class FileUploadController { @RequestMapping(value="/upload", method=RequestMethod.POST) @ResponseBody public String upload(HttpServletRequest request) throws Exception { Part part = request.getPart("uploadfile"); InputStream input = part.getInputStream(); OutputStream output = new FileOutputStream("d:/tmp/" + part.getSubmittedFileName()); IOUtils.copy(input, output); output.close(); input.close(); return "OK"; } @Bean MultipartConfigElement createMultipartConfigElement() { MultipartConfigFactory mcf = new MultipartConfigFactory(); /** * 设置最大上传文件的大小，默认是10MB */ mcf.setMaxFileSize("50MB"); return mcf.createMultipartConfig(); } public static void main(String[] args) throws Exception { SpringApplication.run(FileUploadController.class, args); } } 

  org.apache.httpcomponentshttpclient4.5.2 org.apache.httpcomponentshttpmime4.5.2

 package com.test.upload; import java.io.File; import org.apache.http.HttpEntity; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.mime.MultipartEntityBuilder; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.util.EntityUtils; public class HttpUpload { public static void main(String[] args)throws Exception { String url = "http://127.0.0.1:8080/upload"; CloseableHttpClient client = HttpClients.createDefault(); HttpPost httppost = new HttpPost(url); MultipartEntityBuilder builder = MultipartEntityBuilder.create(); builder.addBinaryBody("uploadfile", new File("D:/develop/apache-karaf-3.0.4.zip")); HttpEntity reqEntity = builder.build(); httppost.setEntity(reqEntity); CloseableHttpResponse resp = client.execute(httppost); String str = EntityUtils.toString(resp.getEntity()); System.out.println(str); resp.close(); client.close(); } }