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Spring Boot搭建文件上传服务的方法

2017-11-18 17:12 681 查看

本文实例为大家分享了Spring Boot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

<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.3.RELEASE</version>
</parent>
<groupId>com.test.spring</groupId>
<artifactId>spring-boot</artifactId>
<version>1.0.0</version>
<packaging>jar</packaging>
<name>spring-boot</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
</dependencies>
</project>

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);
}
}

注意：spring-boot-starter-web 1.3.3.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

<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.2</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpmime</artifactId>
<version>4.5.2</version>
</dependency>

测试代码

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();
}
}

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脚本之家。

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