mailConfig.properties

#服務器mail.host=smtp.qq.com#端口號mail.port=587#郵箱賬號mail.userName=hzy_daybreak_lc@foxmail.com#郵箱授權碼mail.passWord=vxbkycyjkceocbdc#時間延遲mail.timeout=25000#發送人mail.emailForm=hzy_daybreak_lc@foxmail.com#發件人mail.personal=華夏衣裳#主題mail.subject=同袍用戶激活#內容模板mail.html=您的郵箱驗證碼為：

MailConfig.java

/* * @(#)MailConfig.java Created on 2019年9月11日 * Copyright (c) 2019 ZDSoft Networks, Inc. All rights reserved. * $Id$ */package com.hxyc.config.properties; import org.springframework.beans.factory.annotation.Value;import org.springframework.context.annotation.Configuration;import org.springframework.context.annotation.PropertySource;import org.springframework.stereotype.Component; /** * @author huangzy * @version $Revision: 1.0 $, $Date: 2019年9月11日 上午10:29:35 $ */@Configuration@PropertySource(value = 'classpath:config/mailConfig.properties', encoding = 'UTF-8')@Componentpublic class MailConfig { public static String host; public static Integer port; public static String userName; public static String passWord; public static String emailForm; public static String timeout; public static String personal; public static String html; public static String subject; /** * @return Returns the host. */ public static String getHost() {return host; } /** * @param host * The host to set. */ @Value('${mail.host}') public void setHost(String host) {MailConfig.host = host; } /** * @return Returns the port. */ public static Integer getPort() {return port; } /** * @param port * The port to set. */ @Value('${mail.port}') public void setPort(Integer port) {MailConfig.port = port; } /** * @return Returns the userName. */ public static String getUserName() {return userName; } /** * @param userName * The userName to set. */ @Value('${mail.userName}') public void setUserName(String userName) {MailConfig.userName = userName; } /** * @return Returns the passWord. */ public static String getPassWord() {return passWord; } /** * @param passWord * The passWord to set. */ @Value('${mail.passWord}') public void setPassWord(String passWord) {MailConfig.passWord = passWord; } /** * @return Returns the emailForm. */ public static String getEmailForm() {return emailForm; } /** * @param emailForm * The emailForm to set. */ @Value('${mail.emailForm}') public void setEmailForm(String emailForm) {MailConfig.emailForm = emailForm; } /** * @return Returns the timeout. */ public static String getTimeout() {return timeout; } /** * @param timeout * The timeout to set. */ @Value('${mail.timeout}') public void setTimeout(String timeout) {MailConfig.timeout = timeout; } /** * @return Returns the personal. */ public static String getPersonal() {return personal; } /** * @param personal * The personal to set. */ @Value('${mail.personal}') public void setPersonal(String personal) {MailConfig.personal = personal; } /** * @return Returns the html. */ public static String getHtml() {return html; } /** * @param html * The html to set. */ @Value('${mail.html}') public void setHtml(String html) {MailConfig.html = html; } /** * @return Returns the subject. */ public static String getSubject() {return subject; } /** * @param subject * The subject to set. */ @Value('${mail.subject}') public void setSubject(String subject) {MailConfig.subject = subject; } }springboot靜態屬性注入的解決第一種方式

通過springboot組件初始化生命周期進行屬性（對象）賦值

@Componentpublic class DSHWechatApiUtil extends DSHBaseController { @Autowired private IThirdPartyAuthDao thirdPartyAuthDao; private static IThirdPartyAuthDao staticThirdPartyAuthDao;@PostConstruct public void init() {staticThirdPartyAuthDao = thirdPartyAuthDao; } public static JSONObject getAuthorizerToken(String componentAccessToken, String authorizerAppid, String authorizerRefreshToken) {JSONObject returnObject = new JSONObject();try { if (DSHUtils.isEmpty(componentAccessToken)) {componentAccessToken = staticThirdPartyAuthDao.selectWechatValue(DSHConstants.WECHAT_PARAMS.COMPONENT_ACCESS_TOKEN); }} catch (Exception e) { e.printStackTrace();}return returnObject; }}

可以看到，當DSHWechatApiUtil工具類組件進行初始化時，調用@PostConstruct注解標注的方法，對靜態變量進行了賦值。

通過@Value()注解

@Value()注解不會對靜態變量進行屬性注入，通過第一種方式的思維，那么我們肯定得想個辦法，在這個組件初始化時也來賦值。

第一種方式肯定也是可以的，先寫一個屬性，然后通過@Value()注解對這個屬性進行賦值，最后通過@PostConstruct注解方式賦值給靜態屬性。

這里我們要采用另一個方式，這里的方式是通過set方法來賦值。屬性是static修飾的，get方法也是static修飾的，但是set方法不能是static修飾，使用@Value()注解來修飾set方法。

這樣就能成功注入。

第三種方式和第二種差不多，

@ConfigurationProperties(prefix = ProjectConfig.PROJECT_PREFIX)public class ProjectConfig { public static final String PROJECT_PREFIX = 'project'; /** * 系統版本號 */ private String version; /** * 項目名稱 */ private String name; /** * 版權年份 */ private String copyrightYear; /** * 實例演示開關 */ private static boolean demoEnabled; /** * 獲取地址ip開關 */ private static boolean addressEnabled; public String getVersion() {return version; } public void setVersion(String version) {this.version = version; } public String getName() {return name; } public void setName(String name) {this.name = name; } public String getCopyrightYear() {return copyrightYear; } public void setCopyrightYear(String copyrightYear) {this.copyrightYear = copyrightYear; } public boolean isDemoEnabled() {return demoEnabled; } public void setDemoEnabled(boolean demoEnabled) {ProjectConfig.demoEnabled = demoEnabled; } public static boolean isAddressEnabled() {return addressEnabled; } public void setAddressEnabled(boolean addressEnabled) {ProjectConfig.addressEnabled = addressEnabled; }}

如上述代碼，只要把set方法設置為非靜態，那么這個配置類的靜態屬性就能成功注入了。

以上為個人經驗，希望能給大家一個參考，也希望大家多多支持好吧啦網。