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Merge branch 'master' of github.com:heibaiying/Spring-All-In-One

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This commit is contained in:
罗祥 2019-01-04 15:12:12 +08:00
commit 8dcfd49cb9
5 changed files with 108 additions and 71 deletions
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3
spring-boot/spring-boot-data-jpa/src/main/java/com/heibaiying/springboot/bean/Programmer.java
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@ -19,7 +19,7 @@ import java.util.Date;
@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
@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
@ -41,6 +41,7 @@ public class Programmer {
private Date birthday;
public Programmer(String name, int age, float salary, Date birthday) {
this.name = name;
this.age = age;

12
spring-boot/spring-boot-data-jpa/src/main/java/com/heibaiying/springboot/dao/ProgRepository.java
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@ -12,27 +12,27 @@ 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
* @description : 查询接口继承自CrudRepository,CrudRepository 默认定义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
* 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
*分页排序查询
*/
List<Programmer> findByAndSort(String name, Sort sort);
Page<Programmer> findAll(Pageable pageable);
/*
* 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);
List<Programmer> findByConditionAndOrder(String name, float salary, Sort.Order order);
/*
@ -40,5 +40,5 @@ public interface ProgRepository extends CrudRepository<Programmer, Integer> {
*/
@Query("select u from Programmer u where u.name = :name or u.age = :age")
Programmer findByParam(@Param("name") String name,
@Param("age") int age);
@Param("age") int age);
}

12
spring-boot/spring-boot-data-jpa/src/main/resources/application.yml
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@ -5,10 +5,8 @@ spring:
password: root
driver-class-name: com.mysql.cj.jdbc.Driver
jpa:
hibernate:
# 表与实体不一样时候,会相应的更新数据库中的表结构，但是存在表中原先的值不会删除
ddl-auto: update
# Hibernate默认创建的表是myisam引擎，可以用以下方式指定为默认使用innodb创建表
database-platform: org.hibernate.dialect.MySQL57Dialect
show-sql: true
hibernate:
ddl-auto: update
#Hibernate默认创建的表是myisam引擎，可以用以下方式指定为使用innodb创建表
database-platform: org.hibernate.dialect.MySQL57Dialect
show-sql: true

95
spring-boot/spring-boot-data-jpa/src/test/java/com/heibaiying/springboot/DataJPATests.java Normal file
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@ -0,0 +1,95 @@
package com.heibaiying.springboot;
import com.heibaiying.springboot.bean.Programmer;
import com.heibaiying.springboot.dao.ProgRepository;
import org.junit.Assert;
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.test.context.junit4.SpringRunner;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Optional;
@RunWith(SpringRunner.class)
@SpringBootTest
public class DataJPATests {
@Autowired
private ProgRepository repository;
/**
* 保存数据测试
*/
@Test
public void save() {
// 保存单条数据
repository.save(new Programmer("pro01", 12, 2121.34f, new Date()));
// 保存多条数据
List<Programmer> programmers = new ArrayList<>();
programmers.add(new Programmer("pro02", 22, 3221.34f, new Date()));
programmers.add(new Programmer("pro03", 32, 3321.34f, new Date()));
programmers.add(new Programmer("pro04", 44, 4561.34f, new Date()));
programmers.add(new Programmer("pro01", 44, 4561.34f, new Date()));
repository.saveAll(programmers);
}
/**
* 查询数据测试
*/
@Test
public void get() {
// 遵循命名规范的查询
List<Programmer> programmers = repository.findAllByName("pro01");
programmers.forEach(System.out::println);
// 传入参数名称
Programmer param = repository.findByParam("pro02", 22);
System.out.println("findByParam:" + param);
// 占位符查询
List<Programmer> byCondition = repository.findByConditionAndOrder("pro03", 3321.34f, Sort.Order.asc("salary"));
System.out.println("byCondition:" + byCondition);
//条件与分页查询 需要注意的是这里的页数是从第0页开始计算的
Page<Programmer> page = repository.findAll(PageRequest.of(0, 10, Sort.Direction.DESC, "salary"));
page.get().forEach(System.out::println);
}
/**
* 更新数据测试
*/
@Test
public void update() {
// 保存主键相同的数据就认为是更新操作
repository.save(new Programmer(1, "updatePro01", 12, 2121.34f, new Date()));
Optional<Programmer> programmer = repository.findById(1);
Assert.assertEquals(programmer.get().getName(), "updatePro01");
}
/**
* 删除数据测试
*/
@Test
public void delete() {
Optional<Programmer> programmer = repository.findById(2);
if (programmer.isPresent()) {
repository.deleteById(2);
}
Assert.assertFalse(programmer.isPresent());
}
}

57
spring-boot/spring-boot-data-jpa/src/test/java/com/heibaiying/springboot/SpringBootDataJpaApplicationTests.java
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@ -1,57 +0,0 @@
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);
}
}
}