mailConfig.properties
#服务器 mail.host=smtp.qq.com #端口号 mail.port=587 #邮箱账号 mail.userName=hzy_daybreak_lc@foxmail.com #邮箱授权码 mail.passWord=vxbkycyjkceocbdc #时间延迟 mail.timeout=25000 #发送人 mail.emailForm=hzy_daybreak_lc@foxmail.com #发件人 mail.personal=华夏衣裳 #主题 mail.subject=同袍用户激活 #内容模板 mail.html=您的邮箱验证码为：
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")
@Component
public 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;
}
}透過springboot元件初始化生命週期進行屬性（物件）賦值
@Component
public 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工具類別元件進行初始化時，呼叫@PostConstruct註解標註的方法，對靜態變數進行了賦值。
透過@Value()註解
@Value()註解不會對靜態變數進行屬性注入，透過第一種方式的思維，那我們肯定得想個辦法，在這個元件初始化時也來賦值。
第一種方式一定也是可以的，先寫一個屬性，然後透過@Value()註解對這個屬性進行賦值，最後透過@PostConstruct註解方式賦值給靜態屬性。
這裡我們要採取另一個方式，這裡的方式是透過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，用@Value()註解來修飾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";
/**
* 系统版本号
*/
private String version;
/**
* 项目名称
*/
private String name;
/**
* 版权年份
*/
private String copyrightYear;
/**
* 实例演示开关
*/
private static boolean demoEnabled;
/**
* 获取地址ip开关
*/
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;
}
}#如上述程式碼，只要把set方法設為非靜態，那麼這個配置類的靜態屬性就能成功注入了。
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