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为什么要用SpringBoot?
创新互联建站是创新、创意、研发型一体的综合型网站建设公司,自成立以来公司不断探索创新,始终坚持为客户提供满意周到的服务,在本地打下了良好的口碑,在过去的10年时间我们累计服务了上千家以及全国政企客户,如成都展览展示等企业单位,完善的项目管理流程,严格把控项目进度与质量监控加上过硬的技术实力获得客户的一致夸奖。
SpringBoot是由Pivotal团队提供的全新框架,其设计目的是用来简化新Spring应用的初始搭建以及开发过程。该框架使用了特定的方式来进行配置,从而使开发人员不再需要定义样板化的配置。通过这种方式,Spring Boot致力于在蓬勃发展的快速应用开发领域(rapid application development)成为领导者。
为什么要用Nginx?
概述
Nginx(engine x)是一个开源的,支持高并发的www服务和代理服务软件。Nginx是俄罗斯人Igor Sysoev开发的,最初被应用到俄罗斯的大型网站(www.rambler.ru)上。后来作者将源代码以类BSD许可证的形式开源出来供全球使用。在功能应用方面,Nginx不仅是一个优秀的Web服务软件,还具有反向代理负载均衡和缓存的功能。在反向代理负载均衡方面类似于LVS负载均衡及HAProxy等你专业代理软件。Nginx部署起来更加方便简单,在缓存服务功能方面,有类似于Squid等专业的缓存服务软件。Nginx可以运行在UNIX、Linux、MS Windows Server、Mac OS X Server、Solaris等操作系统中。
Nginx的重要特性
Nginx所具备的WWW服务特性
Nginx软件主要企业应用
Web服务应用产品性能对比
为什么Nginx比Apache的性能高?
如何正确采用Web服务器?
关于部署,就不在重复了,如果需要请移步《Java高级架构之FastDFS分布式文件集群》:
使用IDEA场景启动器创建工程
创建Maven工程,修改POM.xml文件添加如下依赖:
org.springframework.boot spring-boot-autoconfigure 1.5.20.RELEASE org.springframework.boot spring-boot-configuration-processor 1.5.20.RELEASE org.springframework.boot spring-boot-starter-logging 1.5.20.RELEASE org.apache.commons commons-pool2 2.6.0
创建必要的包
一般情况下,SpringBoot都会提供相应的@EnableXxx注解标注在应用的主启动类上开启某个功能:
// EnableFastdfsClient.java @Target(ElementType.TYPE) @Retention(RetentionPolicy.RUNTIME) @Import(FastdfsAutoConfiguration.class) @Documented public @interface EnableFastdfsClient { }
下面是相关的自动配置类:
// FastdfsAutoConfiguration.java @Configuration @EnableConfigurationProperties(FastdfsProperties.class) public class FastdfsAutoConfiguration { @Autowired private FastdfsProperties fastdfsProperties; @Bean @ConditionalOnMissingBean(FastdfsClientService.class) public FastdfsClientService fastdfsClientService() throws Exception { return new FastdfsClientService(fastdfsProperties); } }
创建相关的工厂类:
// StorageClientFactory.java // 用于创建连接对象的工厂类 public class StorageClientFactory implements PooledObjectFactory{ @Override public PooledObject makeObject() throws Exception { TrackerClient client = new TrackerClient(); TrackerServer server = client.getConnection(); return new DefaultPooledObject<>(new StorageClient(server, null)); } @Override public void destroyObject(PooledObject p) throws Exception { p.getObject().getTrackerServer().close(); } @Override public boolean validateObject(PooledObject p) { return false; } @Override public void activateObject(PooledObject p) throws Exception { } @Override public void passivateObject(PooledObject p) throws Exception { } }
Properties类用来映射application.properties或者application.yml配置文件:
// FastdfsProperties.java @ConfigurationProperties(prefix = "fastdfs") public class FastdfsProperties { // 连接超时时间 // 网络超时时间 // 字符集编码 // 是否使用Token // Token加密密钥 // 跟踪器IP地址,多个使用分号隔开 // 连接池的连接对象最大个数 // 连接池的最大空闲对象个数 // 连接池的最小空闲对象个数 // Nginx服务器IP,多个使用分号分割 // 获取连接对象时可忍受的等待时长(毫秒) private String connectTimeout = "5"; private String networkTimeout = "30"; private String charset = "UTF-8"; private String httpAntiStealToken = "false"; private String httpSecretKey = ""; private String httpTrackerHttpPort = ""; private String trackerServers = ""; private String connectionPoolMaxTotal = "18"; private String connectionPoolMaxIdle = "18"; private String connectionPoolMinIdle = "2"; private String nginxServers = ""; // 需要创建相关的Setter和Getter方法 }
在Service类中封装方法, 下面仅展示3个常用的方法:
// FastdfsClientSerivce.java public class FastdfsClientService { // SpringBoot加载的配置文件 // 连接池配置项 // 转换后的配置条目 // 连接池 // Nginx服务器地址 private FastdfsProperties fdfsProp; private GenericObjectPoolConfig config; private Properties prop; private GenericObjectPoolpool; private String[] nginxServers; private Logger logger; public FastdfsClientService(FastdfsProperties fdfsProp) throws Exception { this.fdfsProp = fdfsProp; this.logger = LoggerFactory.getLogger(getClass()); init(); create(); info(); } /** * 初始化全局客户端 */ private void init() throws Exception { this.prop = new Properties(); this.logger.info("FastDFS: reading config file..."); this.logger.info("FastDFS: fastdfs.connect_timeout_in_seconds=" + this.fdfsProp.getConnectTimeout()); this.logger.info("FastDFS: fastdfs.network_timeout_in_seconds=" + this.fdfsProp.getNetworkTimeout()); this.logger.info("FastDFS: fastdfs.charset=" + this.fdfsProp.getCharset()); this.logger.info("FastDFS: fastdfs.http_anti_steal_token=" + this.fdfsProp.getHttpAntiStealToken()); this.logger.info("FastDFS: fastdfs.http_secret_key=" + this.fdfsProp.getHttpSecretKey()); this.logger.info("FastDFS: fastdfs.http_tracker_http_port=" + this.fdfsProp.getHttpTrackerHttpPort()); this.logger.info("FastDFS: fastdfs.tracker_servers=" + this.fdfsProp.getTrackerServers()); this.logger.info("FastDFS: fastdfs.connection_pool_max_total=" + this.fdfsProp.getConnectionPoolMaxTotal()); this.logger.info("FastDFS: fastdfs.connection_pool_max_idle=" + this.fdfsProp.getConnectionPoolMaxIdle()); this.logger.info("FastDFS: fastdfs.connection_pool_min_idle=" + this.fdfsProp.getConnectionPoolMinIdle()); this.logger.info("FastDFS: fastdfs.nginx_servers=" + this.fdfsProp.getNginxServers()); this.prop.put("fastdfs.connect_timeout_in_seconds", this.fdfsProp.getConnectTimeout()); this.prop.put("fastdfs.network_timeout_in_seconds", this.fdfsProp.getNetworkTimeout()); this.prop.put("fastdfs.charset", this.fdfsProp.getCharset()); this.prop.put("fastdfs.http_anti_steal_token", this.fdfsProp.getHttpAntiStealToken()); this.prop.put("fastdfs.http_secret_key", this.fdfsProp.getHttpSecretKey()); this.prop.put("fastdfs.http_tracker_http_port", this.fdfsProp.getHttpTrackerHttpPort()); this.prop.put("fastdfs.tracker_servers", this.fdfsProp.getTrackerServers()); ClientGlobal.initByProperties(this.prop); } /** * 显示初始化信息 */ private void info() { this.logger.info("FastDFS parameter: ConnectionPoolMaxTotal ==> " + this.pool.getMaxTotal()); this.logger.info("FastDFS parameter: ConnectionPoolMaxIdle ==> " + this.pool.getMaxIdle()); this.logger.info("FastDFS parameter: ConnectionPoolMinIdle ==> " + this.pool.getMinIdle()); this.logger.info("FastDFS parameter: NginxServer ==> " + Arrays.toString(this.nginxServers)); this.logger.info(ClientGlobal.configInfo()); } /** * 创建连接池 */ private void create() { this.config = new GenericObjectPoolConfig(); this.logger.info("FastDFS Client: Creating connection pool..."); this.config.setMaxTotal(Integer.parseInt(this.fdfsProp.getConnectionPoolMaxTotal())); this.config.setMaxIdle(Integer.parseInt(this.fdfsProp.getConnectionPoolMaxIdle())); this.config.setMinIdle(Integer.parseInt(this.fdfsProp.getConnectionPoolMinIdle())); StorageClientFactory factory = new StorageClientFactory(); this.pool = new GenericObjectPool (factory, this.config); this.nginxServers = this.fdfsProp.getNginxServers().split(","); } /** * Nginx服务器负载均衡算法 * * @param servers 服务器地址 * @param address 客户端IP地址 * @return 可用的服务器地址 */ private String getNginxServer(String[] servers, String address) { int size = servers.length; int i = address.hashCode(); int index = abs(i % size); return servers[index]; } /** * 带有防盗链的下载 * * @param fileGroup 文件组名 * @param remoteFileName 远程文件名称 * @param clientIpAddress 客户端IP地址 * @return 完整的URL地址 */ public String autoDownloadWithToken(String fileGroup, String remoteFileName, String clientIpAddress) throws Exception { int ts = (int) (System.currentTimeMillis() / 1000); String token = ProtoCommon.getToken(remoteFileName, ts, ClientGlobal.getG_secret_key()); String nginx = this.getNginxServer(this.nginxServers, clientIpAddress); return "http://" + nginx + "/" + fileGroup + "/" + remoteFileName + "?token=" + token + "&ts=" + ts; } /** * 上传文件,适合上传图片 * * @param buffer 字节数组 * @param ext 扩展名 * @return 文件组名和ID */ public String[] autoUpload(byte[] buffer, String ext) throws Exception { String[] upload = this.upload(buffer, ext, null); return upload; } /** * 不带防盗链的下载,如果开启防盗链会导致该方法抛出异常 * * @param fileGroup 文件组名 * @param remoteFileName 远程文件ID * @param clientIpAddress 客户端IP地址,根据客户端IP来分配Nginx服务器 * @return 完整的URL地址 */ public String autoDownloadWithoutToken(String fileGroup, String remoteFileName, String clientIpAddress) throws Exception { if (ClientGlobal.getG_anti_steal_token()) { this.logger.error("FastDFS Client: You've turned on Token authentication."); throw new Exception("You've turned on Token authentication."); } String nginx = this.getNginxServer(this.nginxServers, clientIpAddress); return "http://" + nginx + fileGroup + "/" + remoteFileName; } // 后面还有好多方法,就不一一展示了 }
为了在IDEA中使用便捷的配置提示功能,我们需要创建元数据文件(resources/spring-configuration-metadata.json):
{ "groups": [ { "name": "fastdfs", "type": "com.bluemiaomiao.properties.FastdfsProperties", "sourceType": "com.bluemiaomiao.properties.FastdfsProperties" } ], "properties": [ { "name": "connectTimeout", "type": "java.lang.String", "sourceType": "com.bluemiaomiao.properties.FastdfsProperties", "defaultValue": "5" }, { "name": "networkTimeout", "type": "java.lang.String", "sourceType": "com.bluemiaomiao.properties.FastdfsProperties", "defaultValue": "30" }, { "name": "charset", "type": "java.lang.String", "defaultValue": "UTF-8" }, { "name": "httpAntiStealToken", "type": "java.lang.String", "sourceType": "com.bluemiaomiao.properties.FastdfsProperties", "defaultValue": "false" }, { "name": "httpSecretKey", "type": "java.lang.String", "sourceType": "com.bluemiaomiao.properties.FastdfsProperties" }, { "name": "httpTrackerHttpPort", "type": "java.lang.Integer", "sourceType": "com.bluemiaomiao.properties.FastdfsProperties" }, { "name": "trackerServers", "type": "java.lang.String", "sourceType": "com.bluemiaomiao.properties.FastdfsProperties" }, { "name": "connectionPoolMaxTotal", "type": "java.lang.Integer", "sourceType": "com.bluemiaomiao.properties.FastdfsProperties", "defaultValue": "18" }, { "name": "connectionPoolMaxIdle", "type": "java.lang.Integer", "sourceType": "com.bluemiaomiao.properties.FastdfsProperties", "defaultValue": "18" }, { "name": "connectionPoolMinIdle", "type": "java.lang.Integer", "sourceType": "com.bluemiaomiao.properties.FastdfsProperties", "defaultValue": "2" }, { "name": "nginxServers", "type": "java.lang.String", "sourceType": "com.bluemiaomiao.properties.FastdfsProperties" } ], "hints": [ { "name": "http_anti_steal_token", "values": [ { "value": "false" }, { "value": "true" } ] } ] }
应用到项目中
创建SpringBoot项目,勾选Web选项,版本选择1.5.20
进入场景启动器的项目目录执行mvn clean install 将其安装到本地
在POM.xml文件中添加依赖:
com.bluemiaomiao fastdfs-spring-boot-starter 1.0-SNAPSHOT
记得开启IDEA的自动导入功能
创建配置文件application.properties
fastdfs.nginx-servers=192.168.80.2:8000,192.168.80.3:8000,192.168.80.4:8000 fastdfs.tracker-servers=192.168.80.2:22122,192.168.80.3:22122,192.168.80.4:22122 fastdfs.http-secret-key=2scPwMPctXhbLVOYB0jyuyQzytOofmFCBIYe65n56PPYVWrntxzLIDbPdvDDLJM8QHhKxSGWTcr+9VdG3yptkw fastdfs.http-anti-steal-token=true fastdfs.http-tracker-http-port=8080 fastdfs.network-timeout=30 fastdfs.connect-timeout=5 fastdfs.connection-pool-max-idle=18 fastdfs.connection-pool-min-idle=2 fastdfs.connection-pool-max-total=18 fastdfs.charset=UTF-8
或者使用application.yml
fastdfs: charset: UTF-8 connect-timeout: 5 http-secret-key: 2scPwMPctXhbLVOYB0jyuyQzytOofmFCBIYe65n56PPYVWrntxzLIDbPdvDDLJM8QHhKxSGWTcr+9VdG3yptkw network-timeout: 30 http-anti-steal-token: true http-tracker-http-port: 8080 connection-pool-max-idle: 20 connection-pool-max-total: 20 connection-pool-min-idle: 2 nginx-servers: 192.168.80.2:8000,192.168.80.3:8000,192.168.80.4:8000 tracker-servers: 192.168.80.2:22122,192.168.80.3:22122,192.168.80.4:22122
创建控制器类测试方法
// controllers.DownloadController.java @Controller @RequestMapping(value = "/download") public class DownloadController { @Autowired private FastdfsClientService service; @ResponseBody @RequestMapping(value = "/image") public String image() throws Exception { // 之前上传过的数据,实际应用场景应该使用SQL数据库来存储 return service.autoDownloadWithToken("group1", "M00/00/00/wKhQA1ysjSGAPjXbAAVFOL7FJU4.tar.gz", "192.168.80.1"); } }
项目主页:https://github.com/bluemiaomiao/fastdfs-spring-boot-starter
国内项目主页:https://gitee.com/bluemiaomiao/fastdfs-spring-boot-starter
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持创新互联。