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Mybatis Jpa Extra

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...@@ -2,9 +2,9 @@ ...@@ -2,9 +2,9 @@
**MyBatis JPA Extra**对MyBatis扩展JPA功能 **MyBatis JPA Extra**对MyBatis扩展JPA功能
1.Jakarta JPA 3注释**简化CUID操作**; 1.Jakarta JPA 3注释**简化CUID操作**;
2.Interceptor实现数据库**SELECT分页查询**; 2.Interceptor实现数据库**SELECT分页查询**;
3.**链式**Query查询条件构造器; 3.**链式**Query查询条件构造器;
4.提供starter,**简化SpringBoot集成**; 4.提供starter,**简化SpringBoot集成**;
...@@ -40,33 +40,33 @@ ...@@ -40,33 +40,33 @@
@Entity @Entity
@Table(name = "STUDENTS") @Table(name = "STUDENTS")
public class Students extends JpaEntity implements Serializable{ public class Students extends JpaEntity implements Serializable{
@Id @Id
@Column @Column
@GeneratedValue @GeneratedValue
private String id; private String id;
@Column @Column
private String stdNo; private String stdNo;
@Column @Column
private String stdName; private String stdName;
@Column @Column
@ColumnDefault("'M'") @ColumnDefault("'M'")
private String stdGender; private String stdGender;
@Column @Column
private int stdAge; private int stdAge;
@Column @Column
private String stdMajor; private String stdMajor;
@Column @Column
private String stdClass; private String stdClass;
@Column @Column
private byte[] images; private byte[] images;
@Column(insertable = false) @Column(insertable = false)
@GeneratedValue @GeneratedValue
@Temporal(TemporalType.TIMESTAMP) @Temporal(TemporalType.TIMESTAMP)
private LocalDateTime modifyDate; private LocalDateTime modifyDate;
@ColumnLogic @ColumnLogic
@Column(name ="is_deleted") @Column(name ="is_deleted")
private int isDeleted; private int isDeleted;
//getter setter //getter setter
} }
``` ```
## 2、基本操作 ## 2、基本操作
...@@ -74,64 +74,64 @@ public class Students extends JpaEntity implements Serializable{ ...@@ -74,64 +74,64 @@ public class Students extends JpaEntity implements Serializable{
## 2.1、CURD ## 2.1、CURD
```java ```java
//新增数据 //新增数据
@Test @Test
void insert() throws Exception{ void insert() throws Exception{
Students student = new Students(); Students student = new Students();
student.setStdNo("10024"); student.setStdNo("10024");
student.setStdGender("M"); student.setStdGender("M");
student.setStdName("司马昭"); student.setStdName("司马昭");
student.setStdAge(20); student.setStdAge(20);
student.setStdMajor("政治"); student.setStdMajor("政治");
student.setStdClass("4"); student.setStdClass("4");
service.insert(student); service.insert(student);
} }
//查询数据实体并更新 //查询数据实体并更新
@Test @Test
void update() throws Exception{ void update() throws Exception{
Students student = service.get("317d5eda-927c-4871-a916-472a8062df23"); Students student = service.get("317d5eda-927c-4871-a916-472a8062df23");
student.setStdMajor("政治"); student.setStdMajor("政治");
service.update(student); service.update(student);
} }
//根据实体查询并更新 //根据实体查询并更新
@Test @Test
void merge() throws Exception{ void merge() throws Exception{
Students student = new Students(); Students student = new Students();
student.setStdMajor("政治"); student.setStdMajor("政治");
student.setStdClass("4"); student.setStdClass("4");
service.merge(student); service.merge(student);
} }
//根据ID查询 //根据ID查询
@Test @Test
void get() throws Exception{ void get() throws Exception{
Students student = service.get("317d5eda-927c-4871-a916-472a8062df23"); Students student = service.get("317d5eda-927c-4871-a916-472a8062df23");
} }
//根据实体查询 //根据实体查询
@Test @Test
void query() throws Exception{ void query() throws Exception{
Students student = new Students(); Students student = new Students();
student.setStdGender("M"); student.setStdGender("M");
List<Students> listStudents = service.query(student); List<Students> listStudents = service.query(student);
} }
//查询所有记录 //查询所有记录
@Test @Test
void findAll() throws Exception{ void findAll() throws Exception{
List<Students> listStudents = service.findAll(); List<Students> listStudents = service.findAll();
} }
//根据ID删除 //根据ID删除
@Test @Test
void remove() throws Exception{ void remove() throws Exception{
service.remove("921d3377-937a-4578-b1e2-92fb23b5e512"); service.remove("921d3377-937a-4578-b1e2-92fb23b5e512");
} }
//根据ID集合批量删除 //根据ID集合批量删除
@Test @Test
void batchDelete() throws Exception{ void batchDelete() throws Exception{
List<String> idList = new ArrayList<String>(); List<String> idList = new ArrayList<String>();
idList.add("8584804d-b5ac-45d2-9f91-4dd8e7a090a7"); idList.add("8584804d-b5ac-45d2-9f91-4dd8e7a090a7");
idList.add("ab7422e9-a91a-4840-9e59-9d911257c918"); idList.add("ab7422e9-a91a-4840-9e59-9d911257c918");
//... //...
service.deleteBatch(idList); service.deleteBatch(idList);
} }
//根据ID批量删除 //根据ID批量删除
@Test @Test
void batchDeleteByIds() throws Exception{ void batchDeleteByIds() throws Exception{
...@@ -142,47 +142,47 @@ public class Students extends JpaEntity implements Serializable{ ...@@ -142,47 +142,47 @@ public class Students extends JpaEntity implements Serializable{
## 2.2、逻辑删除 ## 2.2、逻辑删除
```java ```java
//根据ID删除或者ID字符串分隔符,批量逻辑删除 //根据ID删除或者ID字符串分隔符,批量逻辑删除
@Test @Test
void logicDelete() throws Exception{ void logicDelete() throws Exception{
service.logicDelete("2"); service.logicDelete("2");
service.logicDelete("2,639178432667713536"); service.logicDelete("2,639178432667713536");
} }
//根据IDS批量逻辑删除 //根据IDS批量逻辑删除
@Test @Test
void logicBatchDelete() throws Exception{ void logicBatchDelete() throws Exception{
List<String> idList=new ArrayList<String>(); List<String> idList=new ArrayList<String>();
idList.add("8584804d-b5ac-45d2-9f91-4dd8e7a090a7"); idList.add("8584804d-b5ac-45d2-9f91-4dd8e7a090a7");
idList.add("ab7422e9-a91a-4840-9e59-9d911257c918"); idList.add("ab7422e9-a91a-4840-9e59-9d911257c918");
//... //...
service.logicDelete(idList); service.logicDelete(idList);
} }
//根据IDS字符串和分割符批量逻辑删除 //根据IDS字符串和分割符批量逻辑删除
@Test @Test
void logicDeleteSplit() throws Exception{ void logicDeleteSplit() throws Exception{
service.logicDeleteSplit("2,639178432667713536",","); service.logicDeleteSplit("2,639178432667713536",",");
} }
``` ```
## 2.3、Find查询和Qruey构造器 ## 2.3、Find查询和Qruey构造器
```java ```java
//SpringJDBC的查询方式 where StdNo = '10024' or StdNo = '10004' //SpringJDBC的查询方式 where StdNo = '10024' or StdNo = '10004'
@Test @Test
void find() throws Exception{ void find() throws Exception{
List<Students> listStudents = service.find(" StdNo = ? or StdNo = ? ", List<Students> listStudents = service.find(" StdNo = ? or StdNo = ? ",
new Object[]{"10024","10004"}, new Object[]{"10024","10004"},
new int[]{Types.VARCHAR,Types.INTEGER} new int[]{Types.VARCHAR,Types.INTEGER}
); );
} }
//根据链式条件构造器查询 //根据链式条件构造器查询
//WHERE (stdMajor = '政治' and STDAGE > 30 and stdMajor in ( '政治' , '化学' ) or ( stdname = '周瑜' or stdname = '吕蒙' ) ) //WHERE (stdMajor = '政治' and STDAGE > 30 and stdMajor in ( '政治' , '化学' ) or ( stdname = '周瑜' or stdname = '吕蒙' ) )
@Test @Test
void queryByCondition() throws Exception{ void queryByCondition() throws Exception{
List<Students> listStudents = service.query( List<Students> listStudents = service.query(
new Query().eq("stdMajor", "政治").and().gt("STDAGE", 30).and().in("stdMajor", new Object[]{"政治","化学"}) new Query().eq("stdMajor", "政治").and().gt("STDAGE", 30).and().in("stdMajor", new Object[]{"政治","化学"})
.or(new Query().eq("stdname", "周瑜").or().eq("stdname", "吕蒙"))); .or(new Query().eq("stdname", "周瑜").or().eq("stdname", "吕蒙")));
} }
``` ```
## 2.4、单表分页查询 ## 2.4、单表分页查询
...@@ -216,7 +216,7 @@ public class Students extends JpaEntity implements Serializable{ ...@@ -216,7 +216,7 @@ public class Students extends JpaEntity implements Serializable{
@Test @Test
void fetchPageResults() throws Exception{ void fetchPageResults() throws Exception{
Students student=new Students(); Students student=new Students();
student.setStdGender("M"); student.setStdGender("M");
student.setPageSize(10); student.setPageSize(10);
student.calculate(21); student.calculate(21);
JpaPageResults<Students> results = service.fetchPageResults(student); JpaPageResults<Students> results = service.fetchPageResults(student);
...@@ -236,63 +236,63 @@ public class Students extends JpaEntity implements Serializable{ ...@@ -236,63 +236,63 @@ public class Students extends JpaEntity implements Serializable{
```xml ```xml
<mapper namespace="org.apache.mybatis.jpa.test.dao.persistence.StudentsMapper" > <mapper namespace="org.apache.mybatis.jpa.test.dao.persistence.StudentsMapper" >
<sql id="sql_condition"> <sql id="sql_condition">
WHERE 1 = 1 WHERE 1 = 1
<if test="id != null"> <if test="id != null">
AND ID = '${id}' AND ID = '${id}'
</if> </if>
<if test="stdName != null and stdName != '' "> <if test="stdName != null and stdName != '' ">
AND STDNAME like '%${stdName}%' AND STDNAME like '%${stdName}%'
</if> </if>
<if test="stdGender != null and stdGender != '' "> <if test="stdGender != null and stdGender != '' ">
AND STDGENDER = #{stdGender} AND STDGENDER = #{stdGender}
</if> </if>
<if test="stdMajor != null"> <if test="stdMajor != null">
<![CDATA[AND STDMAJOR = #{stdMajor}]]> <![CDATA[AND STDMAJOR = #{stdMajor}]]>
</if> </if>
</sql> </sql>
<select id="fetchPageResults" parameterType="Students" resultType="Students"> <select id="fetchPageResults" parameterType="Students" resultType="Students">
SELECT SELECT
ID , ID ,
STDNO , STDNO ,
STDNAME , STDNAME ,
STDGENDER , STDGENDER ,
STDAGE , STDAGE ,
STDMAJOR , STDMAJOR ,
STDCLASS STDCLASS
FROM STUDENTS FROM STUDENTS
<include refid="sql_condition"/> <include refid="sql_condition"/>
</select> </select>
<select id="fetchPageResults1" parameterType="Students" resultType="Students"> <select id="fetchPageResults1" parameterType="Students" resultType="Students">
SELECT SELECT
ID , ID ,
STDNO , STDNO ,
STDNAME , STDNAME ,
STDGENDER , STDGENDER ,
STDAGE , STDAGE ,
STDMAJOR , STDMAJOR ,
STDCLASS STDCLASS
FROM STUDENTS FROM STUDENTS
<include refid="sql_condition"/> <include refid="sql_condition"/>
</select> </select>
<select id="queryBy" parameterType="Students" resultType="Students"> <select id="queryBy" parameterType="Students" resultType="Students">
SELECT SELECT
ID , ID ,
STDNO , STDNO ,
STDNAME , STDNAME ,
STDGENDER , STDGENDER ,
STDAGE , STDAGE ,
STDMAJOR , STDMAJOR ,
STDCLASS STDCLASS
FROM ROLES FROM ROLES
<include refid="sql_condition"/> <include refid="sql_condition"/>
</select> </select>
<delete id="delete" parameterType="Students" > <delete id="delete" parameterType="Students" >
DELETE FROM STUDENTS WHERE ID=#{id} DELETE FROM STUDENTS WHERE ID=#{id}
</delete> </delete>
``` ```
......
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