SpringBoot 项目整体结构：
pom.xml 文件依赖：
<!-- 版本集中管理 -->
<properties>
<javax.servlet-api.version>3.1.0</javax.servlet-api.version>
<mysql-connector-java.version>8.0.11</mysql-connector-java.version>
<druid-spring-boot-starter.version>1.1.9</druid-spring-boot-starter.version>
<commons-lang.version>2.6</commons-lang.version>
<commons-codec.version>1.10</commons-codec.version>
<commons-lang3.version>3.9</commons-lang3.version>
<commons-net.version>3.6</commons-net.version>
<commons-io.version>2.6</commons-io.version>
<commons-collections.version>3.2.1</commons-collections.version>
<commons-text.version>1.8</commons-text.version>
<common-fileupload.version>1.3.1</common-fileupload.version>
</properties>
<dependencies>
<!--springboot web 基础模块 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- springboot test 测试模块 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- spring-data-jpa -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-commons</artifactId>
<version>1.13.22.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>4.3.21.RELEASE</version>
</dependency>
<!--servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>${javax.servlet-api.version}</version>
</dependency>
<!-- mysql 数据库驱动 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql-connector-java.version}</version>
<scope>runtime</scope>
</dependency>
<!--数据库连接池druid 模块 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>${druid-spring-boot-starter.version}</version>
</dependency>
<!-- lombok让代码更简化 -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.16</version>
<scope>provided</scope>
</dependency>
<!-- Swagger2 -->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.7.0</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.7.0</version>
</dependency>
<!-- fastjson -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.48</version>
</dependency>
<!-- apache common 工具包 -->
<!--common-lang 常用工具包 -->
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>${commons-lang.version}</version>
</dependency>
<!--commons-lang3 工具包 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version>
</dependency>
<!--commons-codec 加密工具包 -->
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>${commons-codec.version}</version>
</dependency>
<!--commons-net 网络工具包 -->
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>${commons-net.version}</version>
</dependency>
<!--common-io 工具包 -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>${commons-io.version}</version>
</dependency>
<!--common-collection 工具包 -->
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>${commons-collections.version}</version>
</dependency>
<!--common-fileupload 工具包 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${common-fileupload.version}</version>
</dependency>
<!-- common-text 工具包 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-text</artifactId>
<version>${commons-text.version}</version>
</dependency>
</dependencies>
资源文件夹(resource)定义：
application.properties:
# 指定服务端口
server.port=9098
#数据库配置
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/booksalestore?serverTimezone=Asia/Shanghai&useSSL=false&allowPublicKeyRetrieval=true&allowMultiQueries=true&nullCatalogMeansCurrent=true
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
#JPA 配置
# 格式化sql语句
spring.jpa.properties.hibernate-format_sql=true
# 控制台展示 JPA 框架生成的sql语句
spring.jpa.show-sql=true
# Druid 配置
# 初始化时建立物理连接的个数
spring.datasource.druid.initial-size=5
# 最大连接池数量
spring.datasource.druid.max-active=30
# 最小连接池数量
spring.datasource.druid.min-idle=5
# 获取连接时最大等待时间，单位毫秒
spring.datasource.druid.max-wait=60000
# 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
spring.datasource.druid.time-between-eviction-runs-millis=60000
# 连接保持空闲而不被驱逐的最小时间
spring.datasource.druid.min-evictable-idle-time-millis=300000
# 用来检测连接是否有效的sql，要求是一个查询语句
spring.datasource.druid.validation-query=SELECT 1 FROM DUAL
# 建议配置为true，不影响性能，并且保证安全性。申请连接的时候检测，如果空闲时间大于timeBetweenEvictionRunsMillis，执行validationQuery检测连接是否有效。
spring.datasource.druid.test-while-idle=true
# 申请连接时执行validationQuery检测连接是否有效，做了这个配置会降低性能。
spring.datasource.druid.test-on-borrow=false
# 归还连接时执行validationQuery检测连接是否有效，做了这个配置会降低性能。
spring.datasource.druid.test-on-return=false
# 是否缓存preparedStatement，也就是PSCache。PSCache对支持游标的数据库性能提升巨大，比如说oracle。在mysql下建议关闭。
spring.datasource.druid.pool-prepared-statements=true
# 要启用PSCache，必须配置大于0，当大于0时，poolPreparedStatements自动触发修改为true。
spring.datasource.druid.max-pool-prepared-statement-per-connection-size=50
# 配置监控统计拦截的filters，去掉后监控界面sql无法统计
#spring.datasource.druid.filters=stat,wall
# 通过connectProperties属性来打开mergeSql功能；慢SQL记录
spring.datasource.druid.connection-properties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
# 合并多个DruidDataSource的监控数据
spring.datasource.druid.use-global-data-source-stat=true
# 配置sql 注入方式
spring.datasource.druid.filters=stat,log4j
#日志文件配置
logging.config=classpath:logback.xml
logback.xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- 从高到地低 OFF 、 FATAL 、 ERROR 、 WARN 、 INFO 、 DEBUG 、 TRACE 、 ALL -->
<!-- 日志输出规则 根据当前ROOT 级别，日志输出时，级别高于root默认的级别时 会输出 -->
<!-- 以下 每个配置的 filter 是过滤掉输出文件里面，会出现高级别文件，依然出现低级别的日志信息，通过filter 过滤只记录本级别的日志-->
<!-- 属性描述 scan：性设置为true时，配置文件如果发生改变，将会被重新加载，默认值为true scanPeriod:设置监测配置文件是否有修改的时间间隔，如果没有给出时间单位，
默认单位是毫秒。当scan为true时，此属性生效。默认的时间间隔为1分钟。
debug:当此属性设置为true时，将打印出logback内部日志信息，实时查看logback运行状态。默认值为false。 -->
<configuration scan="true" scanPeriod="60 seconds" debug="false">
<!-- 定义日志文件 输入位置 -->
<property name="log_dir" value="/logs/jpa" />
<!-- 日志最大的历史 30天 -->
<property name="maxHistory" value="30"/>
<!-- ConsoleAppender 控制台输出日志 -->
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<!-- 对日志进行格式化 -->
<encoder>
<pattern>%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger -%msg%n</pattern>
</encoder>
</appender>
<!-- ERROR级别日志 -->
<!-- 滚动记录文件，先将日志记录到指定文件，当符合某个条件时，将日志记录到其他文件 RollingFileAppender-->
<appender name="ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">
<!-- 过滤器，只记录WARN级别的日志 -->
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>ERROR</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
<!-- 最常用的滚动策略，它根据时间来制定滚动策略.既负责滚动也负责出发滚动 -->
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!--日志输出位置 可相对、和绝对路径 -->
<fileNamePattern>${log_dir}/%d{yyyy-MM-dd}/neo4j-error-log.log</fileNamePattern>
<!-- 可选节点，控制保留的归档文件的最大数量，超出数量就删除旧文件假设设置每个月滚动，且<maxHistory>是6，
则只保存最近6个月的文件，删除之前的旧文件。注意，删除旧文件是，那些为了归档而创建的目录也会被删除-->
<maxHistory>${maxHistory}</maxHistory>
</rollingPolicy>
<!-- 按照固定窗口模式生成日志文件，当文件大于20MB时，生成新的日志文件。窗口大小是1到3，当保存了3个归档文件后，将覆盖最早的日志。
<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<fileNamePattern>${log_dir}/%d{yyyy-MM-dd}/.log.zip</fileNamePattern>
<minIndex>1</minIndex>
<maxIndex>3</maxIndex>
</rollingPolicy> -->
<!-- 查看当前活动文件的大小，如果超过指定大小会告知RollingFileAppender 触发当前活动文件滚动
<triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<maxFileSize>5MB</maxFileSize>
</triggeringPolicy> -->
<encoder>
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
</encoder>
</appender>
<!-- WARN级别日志 appender -->
<appender name="WARN" class="ch.qos.logback.core.rolling.RollingFileAppender">
<!-- 过滤器，只记录WARN级别的日志 -->
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>WARN</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>${log_dir}/%d{yyyy-MM-dd}/neo4j-warn-log.log
</fileNamePattern>
<maxHistory>${maxHistory}</maxHistory>
</rollingPolicy>
<encoder>
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
</encoder>
</appender>
<!-- INFO级别日志 appender -->
<appender name="INFO" class="ch.qos.logback.core.rolling.RollingFileAppender">
<!-- 过滤器，只记录INFO级别的日志 -->
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>INFO</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>${log_dir}/%d{yyyy-MM-dd}/neo4j-info-log.log
</fileNamePattern>
<maxHistory>${maxHistory}</maxHistory>
</rollingPolicy>
<encoder>
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
</encoder>
</appender>
<!-- DEBUG级别日志 appender -->
<appender name="DEBUG" class="ch.qos.logback.core.rolling.RollingFileAppender">
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>DEBUG</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>${log_dir}/%d{yyyy-MM-dd}/neo4j-debug-log.log
</fileNamePattern>
<maxHistory>${maxHistory}</maxHistory>
</rollingPolicy>
<encoder>
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
</encoder>
</appender>
<logger name="java.sql.PreparedStatement" value="DEBUG" />
<logger name="java.sql.Connection" value="DEBUG" />
<logger name="java.sql.Statement" value="DEBUG" />
<logger name="com.ibatis" value="DEBUG" />
<logger name="com.ibatis.common.jdbc.SimpleDataSource" value="DEBUG" />
<logger name="com.ibatis.common.jdbc.ScriptRunner" level="DEBUG"/>
<logger name="com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate" value="DEBUG" />
<logger name="org.springframework.web" level="DEBUG"/>
<logger name="com.digipower" level="DEBUG"/>
<!-- root级别 DEBUG -->
<root level="ERROR">
<!-- 控制台输出 -->
<appender-ref ref="STDOUT" />
<!-- 文件输出 -->
<appender-ref ref="ERROR" />
<appender-ref ref="INFO" />
<appender-ref ref="WARN" />
<appender-ref ref="DEBUG" />
</root>
</configuration>
源码文件夹（src）定义
程序入口：
package com.zzg;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;
@SpringBootApplication
public class Application extends SpringBootServletInitializer {
public static void main(String[] args) {
// TODO Auto-generated method stub
SpringApplication.run(Application.class, args);
}
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
// 注意这里要指向原先用main方法执行的Application启动类
return builder.sources(Application.class);
}
}
系统配置
package com.zzg.config;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
/**
* SpringMVC 配置对象
* @author zzg
*
*/
@Configuration
public class WebMvcConfig extends WebMvcConfigurerAdapter {
//保存上传文件的目录
public final static String FILE_DIR="C:/BookSaleStore/upload/";
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
// TODO Auto-generated method stub
registry.addResourceHandler("/upload/**").addResourceLocations("file:///"+WebMvcConfig.FILE_DIR);
}
}
实体对象和dao层：
package com.zzg.dao;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import com.zzg.entity.Address;
@Repository
public interface AddressRepository extends JpaRepository<Address, Long> {
}
package com.zzg.dao;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import com.zzg.entity.People;
@Repository
public interface PeopleRepository extends JpaRepository<People, Long> {
}
package com.zzg.entity;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.experimental.Accessors;
@Entity
@Table(name = "address")
@Data // 自动生成get、set、toString、equals方法
@AllArgsConstructor // 全参构造方法
@NoArgsConstructor // 无参构造方法
@Accessors(chain = true) // 链式编程
public class Address{
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id", nullable = false)
private Long id;//id
@Column(name = "phone", nullable = true, length = 11)
private String phone;//手机
@Column(name = "zipcode", nullable = true, length = 6)
private String zipcode;//邮政编码
@Column(name = "address", nullable = true, length = 100)
private String address;//地址
}
package com.zzg.entity;
import java.util.Date;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;
import javax.persistence.Table;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.experimental.Accessors;
@Entity
@Table(name = "people")
@Data // 自动生成get、set、toString、equals方法
@AllArgsConstructor // 全参构造方法
@NoArgsConstructor // 无参构造方法
@Accessors(chain = true) // 链式编程
public class People{
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id", nullable = false)
private Long id;//id
@Column(name = "name", nullable = true, length = 20)
private String name;//姓名
@Column(name = "sex", nullable = true, length = 1)
private String sex;//性别
@Column(name = "birthday", nullable = true)
private Date birthday;//出生日期
@OneToOne(cascade=CascadeType.ALL)//People是关系的维护端，当删除 people，会级联删除 address
@JoinColumn(name = "address_id", referencedColumnName = "id")//people中的address_id字段参考address表中的id字段
private Address address;//地址
}
功能测试（test）定义
package com.zzg.test;
import java.util.Date;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import com.alibaba.fastjson.JSONObject;
import com.zzg.dao.AddressRepository;
import com.zzg.dao.PeopleRepository;
import com.zzg.entity.Address;
import com.zzg.entity.People;
/**
* Spring-data-jpa 一对一测试
* @author zzg
*
*/
@RunWith(SpringRunner.class)
@SpringBootTest
public class OneToOne {
@Autowired
private PeopleRepository peopleRepository;
@Autowired
private AddressRepository adressRepository;
@Test
public void insertOneToOne(){
Address address = new Address();
address.setAddress("广东省深圳市");
address.setPhone("13265778956");
address.setZipcode("430821");
People people = new People();
people.setName("测试");
people.setSex("1");
people.setBirthday(new Date());
people.setAddress(address);
peopleRepository.save(people);
}
@Test
public void selectOneToOne(){
People people = peopleRepository.findOne(1L);
System.out.println(people.getName());
System.out.println(people.getAddress().toString());
}
@Test
public void updateOneToOne(){
Address address = adressRepository.findOne(1L);
address.setAddress("地址修改");
People people = peopleRepository.findOne(1L);
people.setAddress(address);
peopleRepository.save(people);
}
@Test
public void deleteOneToOne(){
peopleRepository.delete(1L);
}
}
增删改查效果截图：
修改：
新增：
查询
删除：
