Spring Boot搭建文件上传服务的方法

2023-09-20 21:09:06 313

本文实例为大家分享了SpringBoot搭建文件上传服务的具体代码，供大家参考，具体内容如下

一、服务端

pom.xml



4.0.0

org.springframework.boot
spring-boot-starter-parent
1.3.3.RELEASE


com.test.spring
spring-boot
1.0.0
jar

spring-boot
http://maven.apache.org


UTF-8
1.8
1.8




org.springframework.boot
spring-boot-starter-web


commons-io
commons-io
2.4

packagecom.test.spring;

importjava.io.FileOutputStream;
importjava.io.InputStream;
importjava.io.OutputStream;

importjavax.servlet.MultipartConfigElement;
importjavax.servlet.http.HttpServletRequest;
importjavax.servlet.http.Part;

importorg.apache.commons.io.IOUtils;
importorg.springframework.boot.SpringApplication;
importorg.springframework.boot.autoconfigure.EnableAutoConfiguration;
importorg.springframework.boot.context.embedded.MultipartConfigFactory;
importorg.springframework.context.annotation.Bean;
importorg.springframework.stereotype.Controller;
importorg.springframework.web.bind.annotation.RequestMapping;
importorg.springframework.web.bind.annotation.RequestMethod;
importorg.springframework.web.bind.annotation.ResponseBody;

@Controller
@EnableAutoConfiguration
publicclassFileUploadController
{
@RequestMapping(value="/upload",method=RequestMethod.POST)
@ResponseBody
publicStringupload(HttpServletRequestrequest)throwsException
{
Partpart=request.getPart("uploadfile");

InputStreaminput=part.getInputStream();

OutputStreamoutput=newFileOutputStream("d:/tmp/"+part.getSubmittedFileName());
IOUtils.copy(input,output);

output.close();
input.close();

return"OK";
}

@Bean
MultipartConfigElementcreateMultipartConfigElement()
{
MultipartConfigFactorymcf=newMultipartConfigFactory();
/**
*设置最大上传文件的大小，默认是10MB
*/
mcf.setMaxFileSize("50MB");
returnmcf.createMultipartConfig();
}

publicstaticvoidmain(String[]args)throwsException{
SpringApplication.run(FileUploadController.class,args);
}
}

注意：spring-boot-starter-web1.3.3.RELEASE依赖的servlet是3.1

二、客户端

客户端使用httpclient调用

先配置maven依赖


org.apache.httpcomponents
httpclient
4.5.2


org.apache.httpcomponents
httpmime
4.5.2

测试代码

packagecom.test.upload;

importjava.io.File;

importorg.apache.http.HttpEntity;
importorg.apache.http.client.methods.CloseableHttpResponse;
importorg.apache.http.client.methods.HttpPost;
importorg.apache.http.entity.mime.MultipartEntityBuilder;
importorg.apache.http.impl.client.CloseableHttpClient;
importorg.apache.http.impl.client.HttpClients;
importorg.apache.http.util.EntityUtils;

publicclassHttpUpload
{
publicstaticvoidmain(String[]args)throwsException
{
Stringurl="http://127.0.0.1:8080/upload";
CloseableHttpClientclient=HttpClients.createDefault();

HttpPosthttppost=newHttpPost(url);

MultipartEntityBuilderbuilder=MultipartEntityBuilder.create();
builder.addBinaryBody("uploadfile",newFile("D:/develop/apache-karaf-3.0.4.zip"));

HttpEntityreqEntity=builder.build();

httppost.setEntity(reqEntity);

CloseableHttpResponseresp=client.execute(httppost);

Stringstr=EntityUtils.toString(resp.getEntity());
System.out.println(str);

resp.close();
client.close();
}
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。

Spring Boot搭建文件上传服务的方法

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