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发送邮件-使用模板邮件并实现多账号轮询发送
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‎spring-boot-demo-24-1/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.roncoo.education</groupId>
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<artifactId>spring-boot-demo-24-1</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>spring-boot-demo-24-1</name>
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<description>Demo project for Spring Boot</description>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>1.4.0.RELEASE</version>
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<relativePath /> <!-- lookup parent from repository -->
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</parent>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
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<java.version>1.8</java.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-devtools</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-freemarker</artifactId>
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</dependency>
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<dependency>
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<groupId>org.webjars</groupId>
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<artifactId>jquery</artifactId>
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<version>2.1.4</version>
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</dependency>
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<!-- 数据库 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-data-jpa</artifactId>
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</dependency>
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<dependency>
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<groupId>com.h2database</groupId>
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<artifactId>h2</artifactId>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-data-redis</artifactId>
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</dependency>
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<!-- mongodb -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-data-mongodb</artifactId>
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</dependency>
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<dependency>
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<groupId>de.flapdoodle.embed</groupId>
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<artifactId>de.flapdoodle.embed.mongo</artifactId>
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</dependency>
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<!-- caching -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-cache</artifactId>
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</dependency>
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<dependency>
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<groupId>net.sf.ehcache</groupId>
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<artifactId>ehcache</artifactId>
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</dependency>
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<dependency>
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<groupId>org.apache.httpcomponents</groupId>
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<artifactId>httpclient</artifactId>
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</dependency>
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<!-- mail -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-mail</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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</project>

‎spring-boot-demo-24-1/src/main/java/com/roncoo/example/SpringBootDemo241Application.java

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package com.roncoo.example;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.boot.web.servlet.ServletComponentScan;
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import org.springframework.cache.annotation.EnableCaching;
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@EnableCaching
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@ServletComponentScan
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@SpringBootApplication
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public class SpringBootDemo241Application {
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public static void main(String[] args) {
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SpringApplication.run(SpringBootDemo241Application.class, args);
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}
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}

‎spring-boot-demo-24-1/src/main/java/com/roncoo/example/bean/RoncooUser.java

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package com.roncoo.example.bean;
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import java.util.Date;
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public class RoncooUser {
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private int id;
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private String name;
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private Date createTime;
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public int getId() {
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return id;
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}
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public void setId(int id) {
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this.id = id;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public Date getCreateTime() {
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return createTime;
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}
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public void setCreateTime(Date createTime) {
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this.createTime = createTime;
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}
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@Override
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public String toString() {
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return "RoncooUser [id=" + id + ", name=" + name + ", createTime=" + createTime + "]";
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}
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}

‎spring-boot-demo-24-1/src/main/java/com/roncoo/example/bean/RoncooUserLog.java

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package com.roncoo.example.bean;
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import java.util.Date;
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import javax.persistence.Column;
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import javax.persistence.Entity;
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import javax.persistence.GeneratedValue;
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import javax.persistence.Id;
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@Entity
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public class RoncooUserLog {
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@Id
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@GeneratedValue
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private Integer id;
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@Column
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private Date createTime;
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@Column
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private String userName;
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@Column
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private String userIp;
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public Integer getId() {
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return id;
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}
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public void setId(Integer id) {
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this.id = id;
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}
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public Date getCreateTime() {
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return createTime;
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}
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public void setCreateTime(Date createTime) {
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this.createTime = createTime;
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}
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public String getUserName() {
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return userName;
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}
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public void setUserName(String userName) {
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this.userName = userName;
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}
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public String getUserIp() {
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return userIp;
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}
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public void setUserIp(String userIp) {
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this.userIp = userIp;
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}
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@Override
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public String toString() {
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return "RoncooUserLog [id=" + id + ", createTime=" + createTime + ", userName=" + userName + ", userIp=" + userIp + "]";
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}
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}

‎spring-boot-demo-24-1/src/main/java/com/roncoo/example/cache/RoncooUserLogCache.java

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package com.roncoo.example.cache;
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import com.roncoo.example.bean.RoncooUserLog;
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/**
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* @author wujing
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*/
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public interface RoncooUserLogCache {
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/**
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* 查询
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*
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* @param id
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* @return
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*/
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RoncooUserLog selectById(Integer id);
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/**
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* 更新
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*
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* @param roncooUserLog
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* @return
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*/
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RoncooUserLog updateById(RoncooUserLog roncooUserLog);
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/**
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* 删除
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*
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* @param id
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* @return
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*/
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String deleteById(Integer id);
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}

‎spring-boot-demo-24-1/src/main/java/com/roncoo/example/cache/impl/RoncooUserLogCacheImpl.java

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package com.roncoo.example.cache.impl;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.cache.annotation.CacheConfig;
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import org.springframework.cache.annotation.CacheEvict;
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import org.springframework.cache.annotation.CachePut;
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import org.springframework.cache.annotation.Cacheable;
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import org.springframework.stereotype.Repository;
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import com.roncoo.example.bean.RoncooUserLog;
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import com.roncoo.example.cache.RoncooUserLogCache;
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import com.roncoo.example.dao.RoncooUserLogDao;
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/**
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* @author wujing
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*/
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@CacheConfig(cacheNames = "roncooCache")
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@Repository
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public class RoncooUserLogCacheImpl implements RoncooUserLogCache {
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@Autowired
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private RoncooUserLogDao roncooUserLogDao;
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@Cacheable(key = "#p0")
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@Override
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public RoncooUserLog selectById(Integer id) {
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System.out.println("查询功能，缓存找不到，直接读库, id=" + id);
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return roncooUserLogDao.findOne(id);
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}
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@CachePut(key = "#p0")
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@Override
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public RoncooUserLog updateById(RoncooUserLog roncooUserLog) {
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System.out.println("更新功能，更新缓存，直接写库, id=" + roncooUserLog);
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return roncooUserLogDao.save(roncooUserLog);
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}
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@CacheEvict(key = "#p0")
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@Override
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public String deleteById(Integer id) {
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System.out.println("删除功能，删除缓存，直接写库, id=" + id);
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return "清空缓存成功";
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}
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}

‎spring-boot-demo-24-1/src/main/java/com/roncoo/example/component/RoncooJavaMailComponent.java

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package com.roncoo.example.component;
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import java.io.IOException;
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import java.io.UnsupportedEncodingException;
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import java.util.HashMap;
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import java.util.Map;
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import javax.mail.MessagingException;
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import javax.mail.internet.InternetAddress;
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import javax.mail.internet.MimeMessage;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.mail.javamail.MimeMessageHelper;
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import org.springframework.stereotype.Component;
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import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;
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import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;
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import com.roncoo.example.util.configuration.RoncooJavaMailSenderImpl;
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import freemarker.core.ParseException;
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import freemarker.template.MalformedTemplateNameException;
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import freemarker.template.TemplateException;
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import freemarker.template.TemplateNotFoundException;
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/**
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*
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* @author wujing
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*/
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@Component
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public class RoncooJavaMailComponent {
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private static final String template = "mail/roncoo.ftl";
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@Autowired
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private FreeMarkerConfigurer freeMarkerConfigurer;
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@Autowired
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private RoncooJavaMailSenderImpl javaMailSender;
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public void sendMail(String email) {
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Map<String, Object> map = new HashMap<String, Object>();
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map.put("email", email);
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try {
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String text = getTextByTemplate(template, map);
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send(email, text);
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} catch (IOException | TemplateException e) {
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e.printStackTrace();
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} catch (MessagingException e) {
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e.printStackTrace();
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}
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}
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private String getTextByTemplate(String template, Map<String, Object> model) throws TemplateNotFoundException, MalformedTemplateNameException, ParseException, IOException, TemplateException {
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return FreeMarkerTemplateUtils.processTemplateIntoString(freeMarkerConfigurer.getConfiguration().getTemplate(template), model);
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}
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private String send(String email, String text) throws MessagingException, UnsupportedEncodingException {
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MimeMessage message = javaMailSender.createMimeMessage();
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MimeMessageHelper helper = new MimeMessageHelper(message, true, "UTF-8");
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InternetAddress from = new InternetAddress();
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from.setAddress(javaMailSender.getUsername());
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from.setPersonal("龙果学院", "UTF-8");
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helper.setFrom(from);
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helper.setTo(email);
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helper.setSubject("测试邮件");
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helper.setText(text, true);
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javaMailSender.send(message);
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return text;
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}
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}

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