SpringBoot開發(fā)存儲服務(wù)器

godruoyi 發(fā)布于2019-08-16 18:01 / 1290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(wù)，使用作為前端渲編程語言進(jìn)行前端頁面渲染基礎(chǔ)環(huán)境技術(shù)版本創(chuàng)建項目初始化項目修改增加和的支持開發(fā)存儲服務(wù)器一個簡單的應(yīng)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(wù)，使用Angular作為前端渲編程語言進(jìn)行前端頁面渲染.

基礎(chǔ)環(huán)境

技術(shù)	版本
Java	1.8+
SpringBoot	1.5.x

創(chuàng)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(fā)存儲服務(wù)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(yīng)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(wù))

創(chuàng)建一個controller文件夾并在該文件夾下創(chuàng)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(shè)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(wù),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(jié)果

上傳文件成功

測試查詢文件接口

curl localhost:8080/upload

返回結(jié)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(jié)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(jié)果

[]

增加下載文件支持

在controller文件夾下創(chuàng)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(shè)置強制下載不打開
                response.addHeader("Content-Disposition", "attachment;fileName=" + file);// 設(shè)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(xiàn)以下進(jìn)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(jié)果

a.jpg

文件大小設(shè)置

默認(rèn)情況下，Spring Boot最大文件上傳大小為1MB，您可以通過以下應(yīng)用程序?qū)傩耘渲弥担?/p>

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(chuàng)建一個config文件夾,并在該文件夾下創(chuàng)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(shù)據(jù)

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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