修改readme.md

README.md

@@ -53,9 +53,9 @@ spring-cloud：Finchley.SR2
 | [spring-boot-servlet](https://github.com/heibaiying/spring-samples-for-all/tree/master/spring-boot/spring-boot-servlet) | 整合servlet 3.0                                            | [Embedded Servlet Container Support](https://docs.spring.io/spring-boot/docs/2.1.1.RELEASE/reference/htmlsingle/#boot-features-embedded-container) |
 | [spring-boot-tomcat](https://github.com/heibaiying/spring-samples-for-all/tree/master/spring-boot/spring-boot-tomcat) | spring-boot 整合外部容器（tomcat）                         | [Use Another Web Server](https://docs.spring.io/spring-boot/docs/2.1.1.RELEASE/reference/htmlsingle/#howto-use-another-web-server) |
 | [spring-boot-jsp](https://github.com/heibaiying/spring-samples-for-all/tree/master/spring-boot/spring-boot-jsp) | spring-boot 整合 jsp                                       | [JSP Limitations](https://docs.spring.io/spring-boot/docs/2.1.1.RELEASE/reference/htmlsingle/#boot-features-jsp-limitations) |
-| spring-boot-jpa                                              | spring-boot jpa 的使用                                     | [Spring Data JPA](https://docs.spring.io/spring-data/jpa/docs/2.1.3.RELEASE/reference/html/) |
+| spring-boot-data-jpa                                         | spring-boot data jpa 的使用                                | [Spring Data JPA](https://docs.spring.io/spring-data/jpa/docs/2.1.3.RELEASE/reference/html/) |
 | spring-boot-mybatis                                          | spring-boot 整合 mybatis<br/>HikariDataSources数据源的配置 | [Mybatis-Spring](http://www.mybatis.org/spring/zh/index.html)<br/>[Mybatis-Spring-Boot-Autoconfigure](http://www.mybatis.org/spring-boot-starter/mybatis-spring-boot-autoconfigure/) |
-| spring-boot-druid-mybtais                                    | spring-boot 整合druid、mybatis                             | [Alibaba druid](https://github.com/alibaba/druid/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98) |
+| spring-boot-druid-mybtais                                    | spring-boot 整合druid、mybatis                             | [Alibaba druid](https://github.com/alibaba/druid/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98)<br/>[druid-spring-boot-starter](https://github.com/alibaba/druid/tree/master/druid-spring-boot-starter) |
 | [spring-boot-redis](https://github.com/heibaiying/spring-samples-for-all/tree/master/spring-boot/spring-boot-redis) | spring-boot 整合 redis                                     | [Working with NoSQL Technologies](https://docs.spring.io/spring-boot/docs/2.1.1.RELEASE/reference/htmlsingle/#boot-features-nosql) |
 | [spring-boot-mongodb](https://github.com/heibaiying/spring-samples-for-all/tree/master/spring-boot/spring-boot-mongodb) | spring-boot 整合 mongodb                                   | [Working with NoSQL Technologies](https://docs.spring.io/spring-boot/docs/2.1.1.RELEASE/reference/htmlsingle/#boot-features-nosql) |
 | [spring-boot-memcached](https://github.com/heibaiying/spring-samples-for-all/tree/master/spring-boot/spring-boot-memcached) | spring-boot 整合 memcached                                 | [Xmemcached](https://github.com/killme2008/xmemcached/wiki/Xmemcached%20%E4%B8%AD%E6%96%87%E7%94%A8%E6%88%B7%E6%8C%87%E5%8D%97) |

spring-boot/spring-boot-data-jpa/pom.xml

@@ -0,0 +1,54 @@
+<?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>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.1.1.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>com.heibaiying</groupId>
+    <artifactId>spring-boot-data-jpa</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>spring-boot-data-jpa</name>
+    <description>data jpa project for Spring Boot</description>
+
+    <properties>
+        <java.version>1.8</java.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+
+        <!--引入mysql驱动-->
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>8.0.13</version>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

spring-boot/spring-boot-data-jpa/src/main/java/com/heibaiying/springboot/SpringBootDataJpaApplication.java

@@ -0,0 +1,14 @@
+package com.heibaiying.springboot;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringBootDataJpaApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringBootDataJpaApplication.class, args);
+    }
+
+}
+

spring-boot/spring-boot-data-jpa/src/main/java/com/heibaiying/springboot/bean/Programmer.java

@@ -0,0 +1,52 @@
+package com.heibaiying.springboot.bean;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+/*
+ *  需要注意是的 这里导入的与JPA相关注解全部是 javax.persistence 包下面的
+ *  尤其是 @Id不要导成org.springframework.data.annotation.Id
+ *  不然会抛出 No identifier specified for entity 异常
+ */
+import javax.persistence.*;
+import java.util.Date;
+
+/**
+ * @author : heibaiying
+ */
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+@Entity                      // 表示该类是一个数据库表映射实体
+@Table(name = "programmer") // 指明对应的数据库表的名称 不指定的默认就是类名
+public class Programmer {
+
+    /* AUTO:     默认值,主键由程序控制
+     * IDENTITY: 数据库自动增长, Oracle不支持这种方式 ORACLE 靠序列来提供类似自增长的功能
+     * SEQUENCE: 通过数据库的序列产生主键, MYSQL不支持 MYSQL没有序列的概念
+     * Table:    提供特定的数据库产生主键
+     */
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private int id;
+
+    @Column(length = 200)
+    private String name;
+
+    private int age;
+
+    @Column(scale = 2)
+    private float salary;
+
+    private Date birthday;
+
+    public Programmer(String name, int age, float salary, Date birthday) {
+        this.name = name;
+        this.age = age;
+        this.salary = salary;
+        this.birthday = birthday;
+    }
+
+}
+

spring-boot/spring-boot-data-jpa/src/main/java/com/heibaiying/springboot/dao/ProgRepository.java

@@ -0,0 +1,44 @@
+package com.heibaiying.springboot.dao;
+
+import com.heibaiying.springboot.bean.Programmer;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Sort;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.data.repository.query.Param;
+
+import java.util.List;
+
+/**
+ * @author : heibaiying
+ * @description : 查询接口 继承自CrudRepository  CrudRepository 默认实现了部分增删改查方法
+ */
+public interface ProgRepository extends CrudRepository<Programmer, Integer> {
+
+    /*
+     *方法名遵循命名规范的查询 更多命名规范可以参考官方文档所列出的这张表格
+     * https://docs.spring.io/spring-data/jpa/docs/2.1.3.RELEASE/reference/html/#jpa.query-methods.query-creation
+     */
+    List<Programmer> findAllByName(String name);
+
+    /*
+     *分页查询
+     */
+    List<Programmer> findByAndSort(String name, Sort sort);
+
+
+    /*
+     * 占位符查询
+     */
+    @Query(value = "select u from Programmer u where u.name = ?1 or u.salary =  ?2")
+    List<Programmer> findByCondition(String name, float salary);
+
+
+    /*
+     * 传入参数名称
+     */
+    @Query("select u from Programmer u where u.name = :name or u.age = :age")
+    Programmer findByParam(@Param("name") String name,
+                                   @Param("age") int age);
+}

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

@@ -0,0 +1,14 @@
+spring:
+  datasource:
+    url: jdbc:mysql://127.0.0.1:3306/mysql?useUnicode=true&characterEncoding=utf-8
+    username: root
+    password: root
+    driver-class-name: com.mysql.cj.jdbc.Driver
+  jpa:
+      hibernate:
+        # <20><><EFBFBD><EFBFBD>ʵ<EFBFBD>岻һ<E5B2BB><D2BB>ʱ<EFBFBD><CAB1>,<2C><><EFBFBD><EFBFBD>Ӧ<EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF>еı<D0B5><C4B1>ṹ<EFBFBD><E1B9B9><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><C7B4>ڱ<EFBFBD><DAB1><EFBFBD>ԭ<EFBFBD>ȵ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE>
+        ddl-auto: update
+      # HibernateĬ<65>ϴ<EFBFBD><CFB4><EFBFBD><EFBFBD>ı<EFBFBD><C4B1><EFBFBD>myisam<61><6D><EFBFBD>棬<EFBFBD><E6A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ʽָ<CABD><D6B8>ΪĬ<CEAA><C4AC>ʹ<EFBFBD><CAB9>innodb<64><62><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+      database-platform: org.hibernate.dialect.MySQL57Dialect
+      show-sql: true
+

spring-boot/spring-boot-data-jpa/src/test/java/com/heibaiying/springboot/SpringBootDataJpaApplicationTests.java

@@ -0,0 +1,57 @@
+package com.heibaiying.springboot;
+
+import com.heibaiying.springboot.bean.Programmer;
+import com.heibaiying.springboot.dao.ProgRepository;
+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.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Sort;
+import org.springframework.data.jpa.domain.JpaSort;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import java.util.Date;
+import java.util.List;
+import java.util.Optional;
+import java.util.stream.Stream;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class SpringBootDataJpaApplicationTests {
+
+    @Autowired
+    private ProgRepository repository;
+
+    @Test
+    public void save() {
+        repository.save(new Programmer("xiaoxiao", 12, 2121.34f, new Date()));
+    }
+
+
+    @Test
+    public void get() {
+        // 遵循命名规范的查询
+        List<Programmer> programmers = repository.findAllByName("xiaominng");
+        programmers.forEach(System.out::println);
+        // 传入参数名称
+        Programmer param = repository.findByParam("xiaolan", 21);
+        System.out.println("findByParam:" + param);
+        // 占位符查询
+        List<Programmer> byCondition = repository.findByCondition("xiaolan", 347.34f);
+        System.out.println("byCondition:" + byCondition);
+        //条件与分页查询
+        List<Programmer> programmerList = repository.findByAndSort("xiaominng", Sort.by("salary"));
+        programmerList.forEach(System.out::println);
+    }
+
+    @Test
+    public void delete() {
+        Optional<Programmer> programmer = repository.findById(4);
+        if (programmer.isPresent()) {
+            repository.deleteById(4);
+        }
+    }
+}
+