SpringBoot開發存儲服務器

godruoyi 發布于2019-08-16 18:01 / 1287人閱讀

摘要：今天我們嘗試整合，并決定建立一個非常簡單的微服務，使用作為前端渲編程語言進行前端頁面渲染基礎環境技術版本創建項目初始化項目修改增加和的支持開發存儲服務器一個簡單的應用類添加接口

今天我們嘗試Spring Boot整合Angular，并決定建立一個非常簡單的Spring Boot微服務，使用Angular作為前端渲編程語言進行前端頁面渲染.

基礎環境

技術	版本
Java	1.8+
SpringBoot	1.5.x

創建項目

初始化項目

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

修改pom.xml增加java和springboot的支持




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

    4.0.0

    spring-learn-integration-springboot-storage

    SpringBoot開發存儲服務器

    
        
            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}

一個簡單的應用類

/**
 * 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);
    }

}

添加Rest API接口功能(提供上傳服務)

創建一個controller文件夾并在該文件夾下創建UploadController Rest API接口,我們提供一個簡單的文件上傳接口

/**
 * 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
 * 
 * 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 {

    // 文件上傳地址
    private final static String UPLOADED_FOLDER = "/Users/shicheng/Desktop/test/";

    @PostMapping
    public String upload(@RequestParam("file") MultipartFile file) {
        if (file.isEmpty()) {
            return "上傳文件不能為空";
        }
        try {
            byte[] bytes = file.getBytes();
            Path path = Paths.get(UPLOADED_FOLDER + file.getOriginalFilename());
            Files.write(path, bytes);
            return "上傳文件成功";
        } catch (IOException ioe) {
            return "上傳文件失敗,失敗原因: " + 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 "刪除文件" + file + "成功";
    }

}

修改SpringBootAngularIntegration類文件增加以下設置掃描路徑,以便掃描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
 * 
 * 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);
    }

}

啟動服務,測試API接口可用性

在編譯器中直接啟動SpringBootStorageIntegration類文件即可,或者打包jar啟動,打包命令mvn clean package

測試上傳文件接口

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

返回結果

上傳文件成功

測試查詢文件接口

curl localhost:8080/upload

返回結果

["qrcode_for_ambari.jpg"]

測試刪除接口

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

返回結果

刪除文件qrcode_for_ambari.jpg成功

再次查詢查看文件是否被刪除

curl localhost:8080/upload

返回結果

[]

增加下載文件支持

在controller文件夾下創建DownloadController Rest API接口,我們提供一個文件下載接口

/**
 * 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
 * 
 * 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");// 設置強制下載不打開
                response.addHeader("Content-Disposition", "attachment;fileName=" + file);// 設置文件名
                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 "文件下載成功";
                } catch (Exception e) {
                    e.printStackTrace();
                } finally {
                    if (bufferedInputStream != null) {
                        try {
                            bufferedInputStream.close();
                        } catch (IOException e) {
                            return "文件下載失敗,失敗原因: " + e.getMessage();
                        }
                    }
                    if (fileInputStream != null) {
                        try {
                            fileInputStream.close();
                        } catch (IOException e) {
                            return "文件下載失敗,失敗原因: " + e.getMessage();
                        }
                    }
                }
            }
        }
        return "文件下載失敗";
    }

}

測試下載文件

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

出現以下進度條

  % 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

查詢是否下載到本地文件夾

ls a.jpg

返回結果

a.jpg

文件大小設置

默認情況下，Spring Boot最大文件上傳大小為1MB，您可以通過以下應用程序屬性配置值：

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

代碼配置,創建一個config文件夾,并在該文件夾下創建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
 * 
 * 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();
    }

}

打包文件部署

打包數據

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

運行打包后的文件即可

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

源碼地址

GitHub

Gitee

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