jpa demo 完成

spring-boot-demo-jpa/README.md

@@ -0,0 +1,148 @@
+# spring-boot-demo-jpa
+
+依赖 [spring-boot-demo-helloworld](../spring-boot-demo-parent)、`spring-boot-starter-data-jpa`、`druid-spring-boot-starter`
+
+### pom.xml
+
+```xml
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>spring-boot-demo-jpa</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>jar</packaging>
+
+	<name>spring-boot-demo-jpa</name>
+	<description>Demo project for Spring Boot</description>
+
+	<parent>
+		<groupId>com.xkcoding</groupId>
+		<artifactId>spring-boot-demo-parent</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+		<relativePath>../spring-boot-demo-parent</relativePath>
+	</parent>
+
+	<properties>
+		<druid.starter.version>1.1.5</druid.starter.version>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>com.alibaba</groupId>
+			<artifactId>druid-spring-boot-starter</artifactId>
+			<version>${druid.starter.version}</version>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<finalName>spring-boot-demo-jpa</finalName>
+	</build>
+
+</project>
+```
+
+### application.yml
+
+```yml
+server:
+  port: 8080
+  context-path: /demo
+spring:
+  datasource:
+    continue-on-error: true
+    druid:
+      url: jdbc:mysql://localhost:3306/spring-boot-demo?autoReconnect=true&useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=false
+      username: root
+      password: root
+      driver-class-name: com.mysql.jdbc.Driver
+      # 连接池配置
+      # 初始化大小，最小，最大
+      initialSize: 5
+      minIdle: 5
+      maxActive: 20
+      # 配置获取连接等待超时的时间
+      maxWait: 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
+      timeBetweenEvictionRunsMillis: 60000
+      # 配置一个连接在池中最小生存的时间，单位是毫秒
+      minEvictableIdleTimeMillis: 300000
+      validationQuery: SELECT 1 FROM DUAL
+      testWhileIdle: true
+      testOnBorrow: false
+      testOnReturn: false
+      # 打开PSCache，并且指定每个连接上PSCache的大小
+      poolPreparedStatements: true
+      maxPoolPreparedStatementPerConnectionSize: 20
+      # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
+      filters: stat,wall,log4j
+      # 监控配置
+      web-stat-filter:
+        enabled: true
+        url-pattern: /*
+        exclusions: "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"
+      stat-view-servlet:
+        enabled: true
+        url-pattern: /sys/druid/*
+        reset-enable: fasle
+        login-username: xkcoding
+        login-password: 123456
+      filter:
+        stat:
+          log-slow-sql: true
+          slow-sql-millis: 5000
+          merge-sql: true
+  jpa:
+    hibernate:
+      ddl-auto: create-drop
+    show-sql: true
+```
+
+### JpaUser.java
+
+```java
+@Entity
+@Data
+@DynamicUpdate
+public class JpaUser {
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	private Long id;
+
+	@Column(name = "name")
+	private String name;
+
+	@Column(name = "create_time")
+	private Date createTime;
+}
+```
+
+### JpaUserRepository.java
+
+```java
+public interface JpaUserRepository extends JpaRepository<JpaUser, Long> {
+
+	/**
+	 * 自定义一个查询，HQL，根据姓名查询
+	 *
+	 * @param name 名称
+	 * @return JpaUser
+	 */
+	@Query("from JpaUser u where u.name like :name")
+	JpaUser findJpaUser(@Param("name") String name);
+
+	JpaUser findJpaUserByName(String name);
+
+	List<JpaUser> findJpaUsersByIdIn(List<Long> ids);
+
+}
+```
+
+### 其余代码
+
+详情请参见本demo。

spring-boot-demo-jpa/pom.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>spring-boot-demo-jpa</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>jar</packaging>
+
+	<name>spring-boot-demo-jpa</name>
+	<description>Demo project for Spring Boot</description>
+
+	<parent>
+		<groupId>com.xkcoding</groupId>
+		<artifactId>spring-boot-demo-parent</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+		<relativePath>../spring-boot-demo-parent</relativePath>
+	</parent>
+
+	<properties>
+		<druid.starter.version>1.1.5</druid.starter.version>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>com.alibaba</groupId>
+			<artifactId>druid-spring-boot-starter</artifactId>
+			<version>${druid.starter.version}</version>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<finalName>spring-boot-demo-jpa</finalName>
+	</build>
+
+</project>

spring-boot-demo-jpa/src/main/java/com/xkcoding/springbootdemojpa/SpringBootDemoJpaApplication.java

@@ -0,0 +1,12 @@
+package com.xkcoding.springbootdemojpa;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringBootDemoJpaApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(SpringBootDemoJpaApplication.class, args);
+	}
+}

spring-boot-demo-jpa/src/main/java/com/xkcoding/springbootdemojpa/controller/JpaUserController.java

@@ -0,0 +1,86 @@
+package com.xkcoding.springbootdemojpa.controller;
+
+import com.google.common.collect.Lists;
+import com.xkcoding.springbootdemojpa.entity.JpaUser;
+import com.xkcoding.springbootdemojpa.service.JpaUserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.Date;
+import java.util.List;
+
+@RestController
+@RequestMapping("/user")
+public class JpaUserController {
+	@Autowired
+	private JpaUserService jpaUserService;
+
+	@GetMapping("/{id}")
+	public JpaUser findById(@PathVariable Long id) {
+		return jpaUserService.findById(id);
+	}
+
+	@GetMapping({"", "/", "/index"})
+	public List<JpaUser> findAll() {
+		return jpaUserService.findAll();
+	}
+
+	@GetMapping("/save")
+	public JpaUser insert() {
+		JpaUser user = new JpaUser();
+		user.setName("xkcoding");
+		user.setCreateTime(new Date());
+		return jpaUserService.insert(user);
+	}
+
+	@GetMapping("/update")
+	public JpaUser update() {
+		JpaUser user = jpaUserService.findById(1L);
+		user.setName("修改后的姓名");
+		return jpaUserService.update(user);
+	}
+
+	@GetMapping("/delete/{id}")
+	public String delete(@PathVariable Integer id) {
+		if (id == null) {
+			return "Id 不能为空";
+		}
+		JpaUser jpaUser = jpaUserService.findById(id.longValue());
+		if (jpaUser == null) {
+			return "用户不存在";
+		}
+		jpaUserService.delete(jpaUser);
+		return jpaUser.getName() + "删除成功";
+	}
+
+	@GetMapping("/saveList")
+	public List<JpaUser> insertList() {
+		List<JpaUser> userList = Lists.newArrayList();
+		for (int i = 0; i < 20; i++) {
+			JpaUser jpaUser = new JpaUser();
+			jpaUser.setName("xkcoding" + i);
+			jpaUser.setCreateTime(new Date());
+			userList.add(jpaUser);
+		}
+		return jpaUserService.insertList(userList);
+	}
+
+	@GetMapping("/find")
+	public JpaUser findJpaUser(@RequestParam String name) {
+		return jpaUserService.findJpaUser(name);
+	}
+
+	@GetMapping("/find/in")
+	public List<JpaUser> findJpaUsersByIdIn() {
+		List<Long> ids = Lists.newArrayList(1L, 2L, 3L);
+		return jpaUserService.findJpaUsersByIdIn(ids);
+	}
+
+	@GetMapping("/page")
+	public Page<JpaUser> findByPage(@RequestParam(defaultValue = "1") Integer pageNum, @RequestParam(defaultValue = "10") Integer pageSize) {
+		PageRequest pageRequest = new PageRequest(pageNum - 1, pageSize);
+		return jpaUserService.findByPage(pageRequest);
+	}
+}

spring-boot-demo-jpa/src/main/java/com/xkcoding/springbootdemojpa/entity/JpaUser.java

@@ -0,0 +1,22 @@
+package com.xkcoding.springbootdemojpa.entity;
+
+import lombok.Data;
+import org.hibernate.annotations.DynamicUpdate;
+
+import javax.persistence.*;
+import java.util.Date;
+
+@Entity
+@Data
+@DynamicUpdate
+public class JpaUser {
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	private Long id;
+
+	@Column(name = "name")
+	private String name;
+
+	@Column(name = "create_time")
+	private Date createTime;
+}

spring-boot-demo-jpa/src/main/java/com/xkcoding/springbootdemojpa/repository/JpaUserRepository.java

@@ -0,0 +1,25 @@
+package com.xkcoding.springbootdemojpa.repository;
+
+import com.xkcoding.springbootdemojpa.entity.JpaUser;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+
+import java.util.List;
+
+public interface JpaUserRepository extends JpaRepository<JpaUser, Long> {
+
+	/**
+	 * 自定义一个查询，HQL，根据姓名查询
+	 *
+	 * @param name 名称
+	 * @return JpaUser
+	 */
+	@Query("from JpaUser u where u.name like :name")
+	JpaUser findJpaUser(@Param("name") String name);
+
+	JpaUser findJpaUserByName(String name);
+
+	List<JpaUser> findJpaUsersByIdIn(List<Long> ids);
+
+}

spring-boot-demo-jpa/src/main/java/com/xkcoding/springbootdemojpa/service/JpaUserService.java

@@ -0,0 +1,27 @@
+package com.xkcoding.springbootdemojpa.service;
+
+import com.xkcoding.springbootdemojpa.entity.JpaUser;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+
+import java.util.List;
+
+public interface JpaUserService {
+	JpaUser findById(Long id);
+
+	List<JpaUser> findAll();
+
+	JpaUser insert(JpaUser user);
+
+	JpaUser update(JpaUser user);
+
+	void delete(JpaUser user);
+
+	List<JpaUser> insertList(List<JpaUser> userList);
+
+	JpaUser findJpaUser(String name);
+
+	List<JpaUser> findJpaUsersByIdIn(List<Long> ids);
+
+	Page<JpaUser> findByPage(Pageable pageable);
+}

spring-boot-demo-jpa/src/main/java/com/xkcoding/springbootdemojpa/service/impl/JpaUserServiceImpl.java

@@ -0,0 +1,62 @@
+package com.xkcoding.springbootdemojpa.service.impl;
+
+import com.xkcoding.springbootdemojpa.entity.JpaUser;
+import com.xkcoding.springbootdemojpa.repository.JpaUserRepository;
+import com.xkcoding.springbootdemojpa.service.JpaUserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class JpaUserServiceImpl implements JpaUserService {
+	@Autowired
+	private JpaUserRepository jpaUserRepository;
+
+	@Override
+	public JpaUser findById(Long id) {
+		return jpaUserRepository.findOne(id);
+	}
+
+	@Override
+	public List<JpaUser> findAll() {
+		return jpaUserRepository.findAll();
+	}
+
+	@Override
+	public JpaUser insert(JpaUser user) {
+		return jpaUserRepository.save(user);
+	}
+
+	@Override
+	public JpaUser update(JpaUser user) {
+		return jpaUserRepository.save(user);
+	}
+
+	@Override
+	public void delete(JpaUser user) {
+		jpaUserRepository.delete(user);
+	}
+
+	@Override
+	public List<JpaUser> insertList(List<JpaUser> userList) {
+		return jpaUserRepository.save(userList);
+	}
+
+	@Override
+	public JpaUser findJpaUser(String name) {
+		return jpaUserRepository.findJpaUser(name);
+	}
+
+	@Override
+	public List<JpaUser> findJpaUsersByIdIn(List<Long> ids) {
+		return jpaUserRepository.findJpaUsersByIdIn(ids);
+	}
+
+	@Override
+	public Page<JpaUser> findByPage(Pageable pageable) {
+		return jpaUserRepository.findAll(pageable);
+	}
+}

spring-boot-demo-jpa/src/main/resources/application.yml

@@ -0,0 +1,51 @@
+server:
+  port: 8080
+  context-path: /demo
+spring:
+  datasource:
+    continue-on-error: true
+    druid:
+      url: jdbc:mysql://localhost:3306/spring-boot-demo?autoReconnect=true&useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=false
+      username: root
+      password: root
+      driver-class-name: com.mysql.jdbc.Driver
+      # 连接池配置
+      # 初始化大小，最小，最大
+      initialSize: 5
+      minIdle: 5
+      maxActive: 20
+      # 配置获取连接等待超时的时间
+      maxWait: 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
+      timeBetweenEvictionRunsMillis: 60000
+      # 配置一个连接在池中最小生存的时间，单位是毫秒
+      minEvictableIdleTimeMillis: 300000
+      validationQuery: SELECT 1 FROM DUAL
+      testWhileIdle: true
+      testOnBorrow: false
+      testOnReturn: false
+      # 打开PSCache，并且指定每个连接上PSCache的大小
+      poolPreparedStatements: true
+      maxPoolPreparedStatementPerConnectionSize: 20
+      # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
+      filters: stat,wall,log4j
+      # 监控配置
+      web-stat-filter:
+        enabled: true
+        url-pattern: /*
+        exclusions: "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"
+      stat-view-servlet:
+        enabled: true
+        url-pattern: /sys/druid/*
+        reset-enable: fasle
+        login-username: xkcoding
+        login-password: 123456
+      filter:
+        stat:
+          log-slow-sql: true
+          slow-sql-millis: 5000
+          merge-sql: true
+  jpa:
+    hibernate:
+      ddl-auto: create-drop
+    show-sql: true

spring-boot-demo-jpa/src/test/java/com/xkcoding/springbootdemojpa/SpringBootDemoJpaApplicationTests.java

@@ -0,0 +1,16 @@
+package com.xkcoding.springbootdemojpa;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class SpringBootDemoJpaApplicationTests {
+
+	@Test
+	public void contextLoads() {
+	}
+
+}

spring-boot-demo-parent/pom.xml

@@ -16,6 +16,7 @@
 		<module>../spring-boot-demo-properties</module>
 		<module>../spring-boot-demo-actuator</module>
 		<module>../spring-boot-demo-logback</module>
+		<module>../spring-boot-demo-jpa</module>
 		<module>../spring-boot-demo-mybatis</module>
 	</modules>
 
@@ -30,6 +31,10 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<java.version>1.8</java.version>
+		<hutool.version>3.2.0</hutool.version>
+		<commons.lang3.version>3.5</commons.lang3.version>
+		<commons.collections.version>3.2.2</commons.collections.version>
+		<commons.codec.version>1.10</commons.codec.version>
 	</properties>
 
 	<dependencies>
@@ -53,9 +58,24 @@
 		</dependency>
 		<!--工具类-->
 		<dependency>
+			<groupId>org.apache.commons</groupId>
+			<artifactId>commons-lang3</artifactId>
+			<version>${commons.lang3.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>commons-collections</groupId>
+			<artifactId>commons-collections</artifactId>
+			<version>${commons.collections.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>commons-codec</groupId>
+			<artifactId>commons-codec</artifactId>
+			<version>${commons.codec.version}</version>
+		</dependency>
+		<dependency>
 			<groupId>com.xiaoleilu</groupId>
 			<artifactId>hutool-all</artifactId>
-			<version>3.1.2</version>
+			<version>${hutool.version}</version>
 		</dependency>
 		<dependency>
 			<groupId>com.google.guava</groupId>