SpringBootストレージサーバの開発

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今日はSpring BootのAngular統合を試み、フロントエンドレンダリングプログラミング言語としてAngularを使用してフロントエンドページレンダリングを行う非常に簡単なSpring Bootマイクロサービスを構築することにした.
きそかんきょう
ぎじゅつ
バージョン#バージョン#
Java
1.8+
SpringBoot
1.5.x
プロジェクトの作成

初期化項目

mvn archetype:generate -DgroupId=com.edurt.sli.sliss -DartifactId=spring-learn-integration-springboot-storage -DarchetypeArtifactId=maven-archetype-quickstart -Dversion=1.0.0 -DinteractiveMode=false

pomを修正する.xml javaとspringbootのサポート

を追加




    
        spring-learn-integration-springboot
        com.edurt.sli
        1.0.0
    

    4.0.0

    spring-learn-integration-springboot-storage

    SpringBoot       

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

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
                ${dependency.springboot.version}
                
                    true
                
            
            
                org.apache.maven.plugins
                maven-compiler-plugin
                ${plugin.maven.compiler.version}
                
                    ${system.java.version}
                    ${system.java.version}

単純なアプリケーションクラス

/**
 * 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
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 

 * 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;

/**
 * 
 SpringBootStorageIntegration 
 *  Description : SpringBootStorageIntegration 
 *  Author : qianmoQ 
 *  Version : 1.0 
 *  Create Time : 2019-06-10 15:53 
 *  Author Email: qianmoQ 
 */
@SpringBootApplication
public class SpringBootStorageIntegration {

    public static void main(String[] args) {
        SpringApplication.run(SpringBootStorageIntegration.class, args);
    }

}

Rest APIインタフェース機能の追加(アップロードサービス提供)

controllerフォルダを作成し、そのフォルダの下にUploadController Rest APIインタフェースを作成します.簡単なファイルアップロードインタフェース

を提供します.

/**
 * 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
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 

 * 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;

/**
 * 
 UploadController 
 *  Description : UploadController 
 *  Author : qianmoQ 
 *  Version : 1.0 
 *  Create Time : 2019-06-10 15:55 
 *  Author Email: qianmoQ 
 */
@RestController
@RequestMapping(value = "upload")
public class UploadController {

    //       
    private final static String UPLOADED_FOLDER = "/Users/shicheng/Desktop/test/";

    @PostMapping
    public String upload(@RequestParam("file") MultipartFile file) {
        if (file.isEmpty()) {
            return "        ";
        }
        try {
            byte[] bytes = file.getBytes();
            Path path = Paths.get(UPLOADED_FOLDER + file.getOriginalFilename());
            Files.write(path, bytes);
            return "      ";
        } catch (IOException ioe) {
            return "      ,    : " + 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 "    " + file + "  ";
    }

}

SpringBootAngularIntegrationクラスファイルを変更Controller

をスキャンするために、次の設定スキャンパスを追加します.

/**
 * 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
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 

 * 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;

/**
 * 
 SpringBootStorageIntegration 
 *  Description : SpringBootStorageIntegration 
 *  Author : qianmoQ 
 *  Version : 1.0 
 *  Create Time : 2019-06-10 15:53 
 *  Author Email: qianmoQ 
 */
@SpringBootApplication
@ComponentScan(value = {
        "com.edurt.sli.sliss.controller"
})
public class SpringBootStorageIntegration {

    public static void main(String[] args) {
        SpringApplication.run(SpringBootStorageIntegration.class, args);
    }

}

サービスを開始し、APIインタフェースの可用性をテスト
コンパイラでSpringBootStorageIntegrationクラスファイルを直接起動するか、jarをパッケージして起動し、パッケージコマンドmvn clean package

アップロードファイルインタフェース

をテストする

curl localhost:8080/upload -F "file=@/Users/shicheng/Downloads/qrcode/qrcode_for_ambari.jpg"

結果を返す

クエリーファイルインタフェース

をテストする

curl localhost:8080/upload

結果を返す

["qrcode_for_ambari.jpg"]

テスト削除インタフェース

curl -X DELETE 'localhost:8080/upload?file=qrcode_for_ambari.jpg'

結果を返す

    qrcode_for_ambari.jpg

ファイルが削除されたかどうかを再確認

curl localhost:8080/upload

結果を返す

[]

ダウンロードファイルのサポートを追加

controllerフォルダの下にDownloadController Rest APIインタフェースを作成します.ファイルダウンロードインタフェース

を提供します.

/**
 * 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
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 

 * 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.*;

/**
 * 
 DownloadController 
 *  Description : DownloadController 
 *  Author : qianmoQ 
 *  Version : 1.0 
 *  Create Time : 2019-06-10 16:21 
 *  Author Email: qianmoQ 
 */
@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");//          
                response.addHeader("Content-Disposition", "attachment;fileName=" + file);//      
                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 "      ";
                } catch (Exception e) {
                    e.printStackTrace();
                } finally {
                    if (bufferedInputStream != null) {
                        try {
                            bufferedInputStream.close();
                        } catch (IOException e) {
                            return "      ,    : " + e.getMessage();
                        }
                    }
                    if (fileInputStream != null) {
                        try {
                            fileInputStream.close();
                        } catch (IOException e) {
                            return "      ,    : " + e.getMessage();
                        }
                    }
                }
            }
        }
        return "      ";
    }

}

テストダウンロードファイル

curl -o a.jpg 'localhost:8080/download?file=qrcode_for_ambari.jpg'

次のプログレスバーが表示されます.

  % 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

ローカルフォルダにダウンロードするかどうかを問い合わせる

ls a.jpg

結果を返す

a.jpg

ファイルサイズの設定
Spring Bootの最大ファイルアップロードサイズはデフォルトで1 MBです.次のアプリケーションのプロパティで値を設定できます.

プロファイル

#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

コード構成、configフォルダを作成し、そのフォルダの下にMultipartConfig

を作成する

/**
 * 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
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 

 * 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;

/**
 * 
 MultipartConfig 
 *  Description : MultipartConfig 
 *  Author : qianmoQ 
 *  Version : 1.0 
 *  Create Time : 2019-06-10 16:34 
 *  Author Email: qianmoQ 
 */
@Configuration
public class MultipartConfig {

    @Bean
    public MultipartConfigElement multipartConfigElement() {
        MultipartConfigFactory factory = new MultipartConfigFactory();
        factory.setMaxFileSize("10240KB"); //KB,MB
        factory.setMaxRequestSize("102400KB");
        return factory.createMultipartConfig();
    }

}

パッケージファイルの配置

パッケージングデータ

mvn clean package -Dmaven.test.skip=true -X

パッケージされたファイルの実行

java -jar target/spring-learn-integration-springboot-storage-1.0.0.jar

ソースアドレス

GitHub

Gitee

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