SpringBoot开发存储服务器
今天我们尝试Spring Boot整合Angular，并决定建立一个非常简单的Spring Boot微服务，使用Angular作为前端渲编程语言进行前端页面渲染.
基础环境
| 技术 | 版本 |
|---|---|
| Java | 1.8+ |
| SpringBoot | 1.5.x |
创建项目
初始化项目
mvn archetype:generate -DgroupId=com.edurt.sli.sliss -DartifactId=spring-learn-integration-springboot-storage -DarchetypeArtifactId=maven-archetype-quickstart -Dversion=1.0.0 -DinteractiveMode=false 复制代码
修改pom.xml增加java和springboot的支持
<?xml version="1.0" encoding="UTF-8"?> <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"> <parent> <artifactId>spring-learn-integration-springboot</artifactId> <groupId>com.edurt.sli</groupId> <version>1.0.0</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>spring-learn-integration-springboot-storage</artifactId> <name>SpringBoot开发存储服务器</name> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <version>${dependency.springboot.version}</version> <configuration> <fork>true</fork> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>${plugin.maven.compiler.version}</version> <configuration> <source>${system.java.version}</source> <target>${system.java.version}</target> </configuration> </plugin> </plugins> </build> </project> 复制代码一个简单的应用类
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.edurt.sli.sliss; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; /** * <p> SpringBootStorageIntegration </p> * <p> Description : SpringBootStorageIntegration </p> * <p> Author : qianmoQ </p> * <p> Version : 1.0 </p> * <p> Create Time : 2019-06-10 15:53 </p> * <p> Author Email: <a href="mailTo:shichengoooo@163.com">qianmoQ</a> </p> */ @SpringBootApplication public class SpringBootStorageIntegration { public static void main(String[] args) { SpringApplication.run(SpringBootStorageIntegration.class, args); } } 复制代码添加Rest API接口功能(提供上传服务)
创建一个controller文件夹并在该文件夹下创建UploadController Rest API接口,我们提供一个简单的文件上传接口
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.edurt.sli.sliss.controller; import org.springframework.web.bind.annotation.*; import org.springframework.web.multipart.MultipartFile; import java.io.File; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; /** * <p> UploadController </p> * <p> Description : UploadController </p> * <p> Author : qianmoQ </p> * <p> Version : 1.0 </p> * <p> Create Time : 2019-06-10 15:55 </p> * <p> Author Email: <a href="mailTo:shichengoooo@163.com">qianmoQ</a> </p> */ @RestController @RequestMapping(value = "upload") public class UploadController { // 文件上传地址 private final static String UPLOADED_FOLDER = "/Users/shicheng/Desktop/test/"; @PostMapping public String upload(@RequestParam("file") MultipartFile file) { if (file.isEmpty()) { return "上传文件不能为空"; } try { byte[] bytes = file.getBytes(); Path path = Paths.get(UPLOADED_FOLDER + file.getOriginalFilename()); Files.write(path, bytes); return "上传文件成功"; } catch (IOException ioe) { return "上传文件失败,失败原因: " + ioe.getMessage(); } } @GetMapping public Object get() { File file = new File(UPLOADED_FOLDER); String[] filelist = file.list(); return filelist; } @DeleteMapping public String delete(@RequestParam(value = "file") String file) { File source = new File(UPLOADED_FOLDER + file); source.delete(); return "删除文件" + file + "成功"; } } 复制代码修改SpringBootAngularIntegration类文件增加以下设置扫描路径,以便扫描Controller
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.edurt.sli.sliss; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.ComponentScan; /** * <p> SpringBootStorageIntegration </p> * <p> Description : SpringBootStorageIntegration </p> * <p> Author : qianmoQ </p> * <p> Version : 1.0 </p> * <p> Create Time : 2019-06-10 15:53 </p> * <p> Author Email: <a href="mailTo:shichengoooo@163.com">qianmoQ</a> </p> */ @SpringBootApplication @ComponentScan(value = { "com.edurt.sli.sliss.controller" }) public class SpringBootStorageIntegration { public static void main(String[] args) { SpringApplication.run(SpringBootStorageIntegration.class, args); } } 复制代码启动服务,测试API接口可用性
在编译器中直接启动SpringBootStorageIntegration类文件即可,或者打包jar启动,打包命令mvn clean package
测试上传文件接口
curl localhost:8080/upload -F "file=@/Users/shicheng/Downloads/qrcode/qrcode_for_ambari.jpg" 复制代码
返回结果
上传文件成功 复制代码
测试查询文件接口
curl localhost:8080/upload 复制代码
返回结果
["qrcode_for_ambari.jpg"] 复制代码
测试删除接口
curl -X DELETE 'localhost:8080/upload?file=qrcode_for_ambari.jpg' 复制代码
返回结果
删除文件qrcode_for_ambari.jpg成功 复制代码
再次查询查看文件是否被删除
curl localhost:8080/upload 复制代码
返回结果
[] 复制代码
增加下载文件支持
在controller文件夹下创建DownloadController Rest API接口,我们提供一个文件下载接口
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.edurt.sli.sliss.controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; import javax.servlet.http.HttpServletResponse; import java.io.*; /** * <p> DownloadController </p> * <p> Description : DownloadController </p> * <p> Author : qianmoQ </p> * <p> Version : 1.0 </p> * <p> Create Time : 2019-06-10 16:21 </p> * <p> Author Email: <a href="mailTo:shichengoooo@163.com">qianmoQ</a> </p> */ @RestController @RequestMapping(value = "download") public class DownloadController { private final static String UPLOADED_FOLDER = "/Users/shicheng/Desktop/test/"; @GetMapping public String download(@RequestParam(value = "file") String file, HttpServletResponse response) { if (!file.isEmpty()) { File source = new File(UPLOADED_FOLDER + file); if (source.exists()) { response.setContentType("application/force-download");// 设置强制下载不打开 response.addHeader("Content-Disposition", "attachment;fileName=" + file);// 设置文件名 byte[] buffer = new byte[1024]; FileInputStream fileInputStream = null; BufferedInputStream bufferedInputStream = null; try { fileInputStream = new FileInputStream(source); bufferedInputStream = new BufferedInputStream(fileInputStream); OutputStream outputStream = response.getOutputStream(); int i = bufferedInputStream.read(buffer); while (i != -1) { outputStream.write(buffer, 0, i); i = bufferedInputStream.read(buffer); } return "文件下载成功"; } catch (Exception e) { e.printStackTrace(); } finally { if (bufferedInputStream != null) { try { bufferedInputStream.close(); } catch (IOException e) { return "文件下载失败,失败原因: " + e.getMessage(); } } if (fileInputStream != null) { try { fileInputStream.close(); } catch (IOException e) { return "文件下载失败,失败原因: " + e.getMessage(); } } } } } return "文件下载失败"; } } 复制代码测试下载文件
curl -o a.jpg 'localhost:8080/download?file=qrcode_for_ambari.jpg' 复制代码
出现以下进度条
% Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 148k 0 148k 0 0 11.3M 0 --:--:-- --:--:-- --:--:-- 12.0M 复制代码
查询是否下载到本地文件夹
ls a.jpg 复制代码
返回结果
a.jpg 复制代码
文件大小设置
默认情况下，Spring Boot最大文件上传大小为1MB，您可以通过以下应用程序属性配置值：
配置文件
#http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#common-application-properties #search multipart spring.http.multipart.max-file-size=10MB spring.http.multipart.max-request-size=10MB 复制代码
代码配置,创建一个config文件夹,并在该文件夹下创建MultipartConfig
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.edurt.sli.sliss.config; import org.springframework.boot.web.servlet.MultipartConfigFactory; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import javax.servlet.MultipartConfigElement; /** * <p> MultipartConfig </p> * <p> Description : MultipartConfig </p> * <p> Author : qianmoQ </p> * <p> Version : 1.0 </p> * <p> Create Time : 2019-06-10 16:34 </p> * <p> Author Email: <a href="mailTo:shichengoooo@163.com">qianmoQ</a> </p> */ @Configuration public class MultipartConfig { @Bean public MultipartConfigElement multipartConfigElement() { MultipartConfigFactory factory = new MultipartConfigFactory(); factory.setMaxFileSize("10240KB"); //KB,MB factory.setMaxRequestSize("102400KB"); return factory.createMultipartConfig(); } } 复制代码打包文件部署
打包数据
mvn clean package -Dmaven.test.skip=true -X 复制代码
运行打包后的文件即可
java -jar target/spring-learn-integration-springboot-storage-1.0.0.jar
作者：EdurtIO
链接：https://juejin.cn/post/7171611418913931300
来源：https://www.77cxw.com/