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SpringBoot开发存储服务器

godruoyi / 1353人阅读

摘要：今天我们尝试整合，并决定建立一个非常简单的微服务，使用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创建项目初始化项目修改增加和的支持开发存储服务器一个简单的应用类添加接口

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

</>复制代码 
  1. mvn archetype:generate -DgroupId=com.edurt.sli.sliss -DartifactId=spring-learn-integration-springboot-storage -DarchetypeArtifactId=maven-archetype-quickstart -Dversion=1.0.0 -DinteractiveMode=false

修改pom.xml增加java和springboot的支持

</>复制代码 
  3.     
  4.         spring-learn-integration-springboot
  5.         com.edurt.sli
  6.         1.0.0
  7.     
  8.     4.0.0
  9.     spring-learn-integration-springboot-storage
  10.     SpringBoot开发存储服务器
  11.     
  12.         
  13.             org.springframework.boot
  14.             spring-boot-starter-web
  15.         
  16.     
  17.     
  18.         
  19.             
  20.                 org.springframework.boot
  21.                 spring-boot-maven-plugin
  22.                 ${dependency.springboot.version}
  23.                 
  24.                     true
  25.                 
  26.             
  27.             
  28.                 org.apache.maven.plugins
  29.                 maven-compiler-plugin
  30.                 ${plugin.maven.compiler.version}
  31.                 
  32.                     ${system.java.version}
  33.                     ${system.java.version}
  34.                 
  35.             
  36.         
  37.

一个简单的应用类

</>复制代码 
  1. /**
  2.  * Licensed to the Apache Software Foundation (ASF) under one
  3.  * or more contributor license agreements.  See the NOTICE file
  4.  * distributed with this work for additional information
  5.  * regarding copyright ownership.  The ASF licenses this file
  6.  * to you under the Apache License, Version 2.0 (the
  7.  * "License"); you may not use this file except in compliance
  8.  * with the License.  You may obtain a copy of the License at
  9.  * 
  10.  * http://www.apache.org/licenses/LICENSE-2.0
  11.  * 
  12.  * Unless required by applicable law or agreed to in writing, software
  13.  * distributed under the License is distributed on an "AS IS" BASIS,
  14.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15.  * See the License for the specific language governing permissions and
  16.  * limitations under the License.
  17.  */
  18. package com.edurt.sli.sliss;
  19. import org.springframework.boot.SpringApplication;
  20. import org.springframework.boot.autoconfigure.SpringBootApplication;
  21. /**
  22.  * 
     SpringBootStorageIntegration 
  23.  * 
     Description : SpringBootStorageIntegration 
  24.  * 
     Author : qianmoQ 
  25.  * 
     Version : 1.0 
  26.  * 
     Create Time : 2019-06-10 15:53 
  27.  * 
     Author Email: qianmoQ 
  28.  */
  29. @SpringBootApplication
  30. public class SpringBootStorageIntegration {
  31.     public static void main(String[] args) {
  32.         SpringApplication.run(SpringBootStorageIntegration.class, args);
  33.     }
  34. }
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

</>复制代码 
  1. /**
  2.  * Licensed to the Apache Software Foundation (ASF) under one
  3.  * or more contributor license agreements.  See the NOTICE file
  4.  * distributed with this work for additional information
  5.  * regarding copyright ownership.  The ASF licenses this file
  6.  * to you under the Apache License, Version 2.0 (the
  7.  * "License"); you may not use this file except in compliance
  8.  * with the License.  You may obtain a copy of the License at
  9.  * 
  10.  * http://www.apache.org/licenses/LICENSE-2.0
  11.  * 
  12.  * Unless required by applicable law or agreed to in writing, software
  13.  * distributed under the License is distributed on an "AS IS" BASIS,
  14.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15.  * See the License for the specific language governing permissions and
  16.  * limitations under the License.
  17.  */
  18. package com.edurt.sli.sliss.controller;
  19. import org.springframework.web.bind.annotation.*;
  20. import org.springframework.web.multipart.MultipartFile;
  21. import java.io.File;
  22. import java.io.IOException;
  23. import java.nio.file.Files;
  24. import java.nio.file.Path;
  25. import java.nio.file.Paths;
  26. /**
  27.  * 
     UploadController 
  28.  * 
     Description : UploadController 
  29.  * 
     Author : qianmoQ 
  30.  * 
     Version : 1.0 
  31.  * 
     Create Time : 2019-06-10 15:55 
  32.  * 
     Author Email: qianmoQ 
  33.  */
  34. @RestController
  35. @RequestMapping(value = "upload")
  36. public class UploadController {
  37.     // 文件上传地址
  38.     private final static String UPLOADED_FOLDER = "/Users/shicheng/Desktop/test/";
  39.     @PostMapping
  40.     public String upload(@RequestParam("file") MultipartFile file) {
  41.         if (file.isEmpty()) {
  42.             return "上传文件不能为空";
  43.         }
  44.         try {
  45.             byte[] bytes = file.getBytes();
  46.             Path path = Paths.get(UPLOADED_FOLDER + file.getOriginalFilename());
  47.             Files.write(path, bytes);
  48.             return "上传文件成功";
  49.         } catch (IOException ioe) {
  50.             return "上传文件失败,失败原因: " + ioe.getMessage();
  51.         }
  52.     }
  53.     @GetMapping
  54.     public Object get() {
  55.         File file = new File(UPLOADED_FOLDER);
  56.         String[] filelist = file.list();
  57.         return filelist;
  58.     }
  59.     @DeleteMapping
  60.     public String delete(@RequestParam(value = "file") String file) {
  61.         File source = new File(UPLOADED_FOLDER + file);
  62.         source.delete();
  63.         return "删除文件" + file + "成功";
  64.     }
  65. }

修改SpringBootAngularIntegration类文件增加以下设置扫描路径,以便扫描Controller

</>复制代码 
  1. /**
  2.  * Licensed to the Apache Software Foundation (ASF) under one
  3.  * or more contributor license agreements.  See the NOTICE file
  4.  * distributed with this work for additional information
  5.  * regarding copyright ownership.  The ASF licenses this file
  6.  * to you under the Apache License, Version 2.0 (the
  7.  * "License"); you may not use this file except in compliance
  8.  * with the License.  You may obtain a copy of the License at
  9.  * 
  10.  * http://www.apache.org/licenses/LICENSE-2.0
  11.  * 
  12.  * Unless required by applicable law or agreed to in writing, software
  13.  * distributed under the License is distributed on an "AS IS" BASIS,
  14.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15.  * See the License for the specific language governing permissions and
  16.  * limitations under the License.
  17.  */
  18. package com.edurt.sli.sliss;
  19. import org.springframework.boot.SpringApplication;
  20. import org.springframework.boot.autoconfigure.SpringBootApplication;
  21. import org.springframework.context.annotation.ComponentScan;
  22. /**
  23.  * 
     SpringBootStorageIntegration 
  24.  * 
     Description : SpringBootStorageIntegration 
  25.  * 
     Author : qianmoQ 
  26.  * 
     Version : 1.0 
  27.  * 
     Create Time : 2019-06-10 15:53 
  28.  * 
     Author Email: qianmoQ 
  29.  */
  30. @SpringBootApplication
  31. @ComponentScan(value = {
  32.         "com.edurt.sli.sliss.controller"
  33. })
  34. public class SpringBootStorageIntegration {
  35.     public static void main(String[] args) {
  36.         SpringApplication.run(SpringBootStorageIntegration.class, args);
  37.     }
  38. }
启动服务,测试API接口可用性 
</>复制代码 
  1. 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

</>复制代码 
  1. curl localhost:8080/upload -F "file=@/Users/shicheng/Downloads/qrcode/qrcode_for_ambari.jpg"

返回结果

</>复制代码 
  1. 上传文件成功

测试查询文件接口

</>复制代码 
  1. curl localhost:8080/upload

返回结果

</>复制代码 
  1. ["qrcode_for_ambari.jpg"]

测试删除接口

</>复制代码 
  1. curl -X DELETE "localhost:8080/upload?file=qrcode_for_ambari.jpg"

返回结果

</>复制代码 
  1. 删除文件qrcode_for_ambari.jpg成功

再次查询查看文件是否被删除

</>复制代码 
  1. curl localhost:8080/upload

返回结果

</>复制代码 
  1. []
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

</>复制代码 
  1. /**
  2.  * Licensed to the Apache Software Foundation (ASF) under one
  3.  * or more contributor license agreements.  See the NOTICE file
  4.  * distributed with this work for additional information
  5.  * regarding copyright ownership.  The ASF licenses this file
  6.  * to you under the Apache License, Version 2.0 (the
  7.  * "License"); you may not use this file except in compliance
  8.  * with the License.  You may obtain a copy of the License at
  9.  * 
  10.  * http://www.apache.org/licenses/LICENSE-2.0
  11.  * 
  12.  * Unless required by applicable law or agreed to in writing, software
  13.  * distributed under the License is distributed on an "AS IS" BASIS,
  14.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15.  * See the License for the specific language governing permissions and
  16.  * limitations under the License.
  17.  */
  18. package com.edurt.sli.sliss.controller;
  19. import org.springframework.web.bind.annotation.GetMapping;
  20. import org.springframework.web.bind.annotation.RequestMapping;
  21. import org.springframework.web.bind.annotation.RequestParam;
  22. import org.springframework.web.bind.annotation.RestController;
  23. import javax.servlet.http.HttpServletResponse;
  24. import java.io.*;
  25. /**
  26.  * 
     DownloadController 
  27.  * 
     Description : DownloadController 
  28.  * 
     Author : qianmoQ 
  29.  * 
     Version : 1.0 
  30.  * 
     Create Time : 2019-06-10 16:21 
  31.  * 
     Author Email: qianmoQ 
  32.  */
  33. @RestController
  34. @RequestMapping(value = "download")
  35. public class DownloadController {
  36.     private final static String UPLOADED_FOLDER = "/Users/shicheng/Desktop/test/";
  37.     @GetMapping
  38.     public String download(@RequestParam(value = "file") String file,
  39.                            HttpServletResponse response) {
  40.         if (!file.isEmpty()) {
  41.             File source = new File(UPLOADED_FOLDER + file);
  42.             if (source.exists()) {
  43.                 response.setContentType("application/force-download");// 设置强制下载不打开
  44.                 response.addHeader("Content-Disposition", "attachment;fileName=" + file);// 设置文件名
  45.                 byte[] buffer = new byte[1024];
  46.                 FileInputStream fileInputStream = null;
  47.                 BufferedInputStream bufferedInputStream = null;
  48.                 try {
  49.                     fileInputStream = new FileInputStream(source);
  50.                     bufferedInputStream = new BufferedInputStream(fileInputStream);
  51.                     OutputStream outputStream = response.getOutputStream();
  52.                     int i = bufferedInputStream.read(buffer);
  53.                     while (i != -1) {
  54.                         outputStream.write(buffer, 0, i);
  55.                         i = bufferedInputStream.read(buffer);
  56.                     }
  57.                     return "文件下载成功";
  58.                 } catch (Exception e) {
  59.                     e.printStackTrace();
  60.                 } finally {
  61.                     if (bufferedInputStream != null) {
  62.                         try {
  63.                             bufferedInputStream.close();
  64.                         } catch (IOException e) {
  65.                             return "文件下载失败,失败原因: " + e.getMessage();
  66.                         }
  67.                     }
  68.                     if (fileInputStream != null) {
  69.                         try {
  70.                             fileInputStream.close();
  71.                         } catch (IOException e) {
  72.                             return "文件下载失败,失败原因: " + e.getMessage();
  73.                         }
  74.                     }
  75.                 }
  76.             }
  77.         }
  78.         return "文件下载失败";
  79.     }
  80. }

测试下载文件

</>复制代码 
  1. curl -o a.jpg "localhost:8080/download?file=qrcode_for_ambari.jpg"

出现以下进度条

</>复制代码 
  1.   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
  2.                                  Dload  Upload   Total   Spent    Left  Speed
  3. 100  148k    0  148k    0     0  11.3M      0 --:--:-- --:--:-- --:--:-- 12.0M

查询是否下载到本地文件夹

</>复制代码 
  1. ls a.jpg

返回结果

</>复制代码 
  1. a.jpg
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

</>复制代码 
  1. #http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#common-application-properties
  2. #search multipart
  3. spring.http.multipart.max-file-size=10MB
  4. spring.http.multipart.max-request-size=10MB

代码配置,创建一个config文件夹,并在该文件夹下创建MultipartConfig

</>复制代码 
  1. /**
  2.  * Licensed to the Apache Software Foundation (ASF) under one
  3.  * or more contributor license agreements.  See the NOTICE file
  4.  * distributed with this work for additional information
  5.  * regarding copyright ownership.  The ASF licenses this file
  6.  * to you under the Apache License, Version 2.0 (the
  7.  * "License"); you may not use this file except in compliance
  8.  * with the License.  You may obtain a copy of the License at
  9.  * 
  10.  * http://www.apache.org/licenses/LICENSE-2.0
  11.  * 
  12.  * Unless required by applicable law or agreed to in writing, software
  13.  * distributed under the License is distributed on an "AS IS" BASIS,
  14.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15.  * See the License for the specific language governing permissions and
  16.  * limitations under the License.
  17.  */
  18. package com.edurt.sli.sliss.config;
  19. import org.springframework.boot.web.servlet.MultipartConfigFactory;
  20. import org.springframework.context.annotation.Bean;
  21. import org.springframework.context.annotation.Configuration;
  22. import javax.servlet.MultipartConfigElement;
  23. /**
  24.  * 
     MultipartConfig 
  25.  * 
     Description : MultipartConfig 
  26.  * 
     Author : qianmoQ 
  27.  * 
     Version : 1.0 
  28.  * 
     Create Time : 2019-06-10 16:34 
  29.  * 
     Author Email: qianmoQ 
  30.  */
  31. @Configuration
  32. public class MultipartConfig {
  33.     @Bean
  34.     public MultipartConfigElement multipartConfigElement() {
  35.         MultipartConfigFactory factory = new MultipartConfigFactory();
  36.         factory.setMaxFileSize("10240KB"); //KB,MB
  37.         factory.setMaxRequestSize("102400KB");
  38.         return factory.createMultipartConfig();
  39.     }
  40. }
打包文件部署

打包数据

</>复制代码 
  1. mvn clean package -Dmaven.test.skip=true -X

运行打包后的文件即可

</>复制代码 
  1. java -jar target/spring-learn-integration-springboot-storage-1.0.0.jar
源码地址

GitHub

Gitee

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