From 7f17a04cbeea44da61dddc0b44e649445463fef2 Mon Sep 17 00:00:00 2001 From: MaxKey Date: Tue, 16 Aug 2022 06:59:47 +0800 Subject: [PATCH] readme update --- README.md | 100 +++++++----------- .../mybatis/jpa/test/MyBatisTestRunner.java | 9 +- 2 files changed, 42 insertions(+), 67 deletions(-) diff --git a/README.md b/README.md index e1cefa9..45c874d 100644 --- a/README.md +++ b/README.md @@ -5,11 +5,13 @@ 2.用Interceptor实现数据库**SELECT分页查询**; -3.提供mybatis-jpa-extra-spring-boot-starter,**简化SpringBoot集成**; +3.**链式**Query查询条件构造器; -## 1、JavaBean注释简单 +4.提供starter,**简化SpringBoot集成**; -仅有6个注释 +## 1、JPA 2.1注释 + +仅支持6个注释 > * @Entity > * @Table > * @Column @@ -17,8 +19,9 @@ > * @GeneratedValue > * @Transient +主键策略 -@GeneratedValue有4中策略 +支持3种主键策略，4种AUTO自动主键策略 1. **AUTO** @@ -38,22 +41,13 @@ generator无，根据数据库自动生成方式 +## 1、JavaBean JPA注释 ```java -package org.apache.mybatis.jpa.test.entity; -import java.io.Serializable; -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 org.apache.mybatis.jpa.persistence.JpaBaseEntity; @Entity @Table(name = "STUDENTS") public class Students extends JpaBaseEntity implements Serializable{ - private static final long serialVersionUID = -6928570405840778151L; @Id @Column @@ -93,30 +87,10 @@ public class Students extends JpaBaseEntity implements Serializable{ } ``` -## 2、单表新增、修改、删除、查询、分页查询 +## 2、CURD、Qruey构造器查询和分页查询 ```java -package org.apache.mybatis.jpa.test; -import java.sql.Types; -import java.text.SimpleDateFormat; -import java.util.ArrayList; -import java.util.Date; -import java.util.List; -import org.apache.mybatis.jpa.test.dao.service.StudentsService; -import org.apache.mybatis.jpa.test.entity.Students; -import org.apache.mybatis.jpa.util.WebContext; -import org.junit.Before; -import org.junit.Test; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; -import org.springframework.context.ApplicationContext; -import org.springframework.context.support.ClassPathXmlApplicationContext; - -public class MyBatisTestRunner { - private static final Logger _logger = LoggerFactory.getLogger(MyBatisTestRunner.class); - public static ApplicationContext context; - public static StudentsService service; - + //新增数据 @Test public void insert() throws Exception{ _logger.info("insert..."); @@ -135,6 +109,7 @@ public class MyBatisTestRunner { //service.remove(student.getId()); } + //根据实体查询并更新 @Test public void merge() throws Exception{ _logger.info("merge..."); @@ -152,6 +127,7 @@ public class MyBatisTestRunner { _logger.info("insert id " + student.getId()); } + //springJDBC 的查询方式 @Test public void find() throws Exception{ _logger.info("find..."); @@ -168,6 +144,7 @@ public class MyBatisTestRunner { ); } + //根据ID查询 @Test public void get() throws Exception{ _logger.info("get..."); @@ -176,6 +153,7 @@ public class MyBatisTestRunner { _logger.info("Students "+student); } + //查询数据实体并更新 @Test public void update() throws Exception{ _logger.info("get..."); @@ -192,6 +170,7 @@ public class MyBatisTestRunner { _logger.info("updateed2."); } + //根据ID删除 @Test public void remove() throws Exception{ _logger.info("remove..."); @@ -200,6 +179,7 @@ public class MyBatisTestRunner { service.remove(student.getId()); } + //根据ID集合批量删除 @Test public void batchDelete() throws Exception{ _logger.info("batchDelete..."); @@ -211,6 +191,7 @@ public class MyBatisTestRunner { service.deleteBatch(idList); } + //根据ID批量逻辑删除 @Test public void logicDelete() throws Exception{ _logger.info("logicDelete..."); @@ -221,7 +202,8 @@ public class MyBatisTestRunner { idList.add("dafd5ba4-d2e3-4656-bd42-178841e610fe"); service.logicDelete(idList); } - + + //根据ID批量删除 @Test public void batchDeleteByIds() throws Exception{ _logger.info("batchDeleteByIds..."); @@ -229,6 +211,7 @@ public class MyBatisTestRunner { service.deleteBatch("2,639178432667713536"); } + //分页查询 @Test public void queryPageResults() throws Exception{ _logger.info("queryPageResults..."); @@ -245,7 +228,8 @@ public class MyBatisTestRunner { _logger.info("Students "+s); } } - + + //mapper id分页查询 @Test public void queryPageResultsByMapperId() throws Exception{ _logger.info("queryPageResults by mapperId..."); @@ -260,7 +244,7 @@ public class MyBatisTestRunner { _logger.info("Students "+s); } } - + //根据实体查询 @Test public void query() throws Exception{ _logger.info("findAll..."); @@ -269,7 +253,21 @@ public class MyBatisTestRunner { _logger.info("Students "+s); } } + + //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' ) ) + @Test + public void queryByQuery() throws Exception{ + _logger.info("find..."); + List allListStudents =service.query( + 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"))); + for (Students s : allListStudents) { + _logger.info("Students "+s); + } + } + //查询所有记录 @Test public void findAll() throws Exception{ _logger.info("findAll..."); @@ -279,29 +277,7 @@ public class MyBatisTestRunner { } } - @Before - public void initSpringContext(){ - if(context!=null) return; - _logger.info("init Spring Context..."); - SimpleDateFormat sdf_ymdhms =new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); - String startTime=sdf_ymdhms.format(new Date()); - try{ - MyBatisTestRunner runner=new MyBatisTestRunner(); - runner.init(); - }catch(Exception e){ - e.printStackTrace(); - } - _logger.info("-- --Init Start at " + startTime+" , End at "+sdf_ymdhms.format(new Date())); - } - - //Initialization ApplicationContext for Project - public void init(){ - _logger.info("Application dir "+System.getProperty("user.dir")); - context = new ClassPathXmlApplicationContext(new String[] {"spring/applicationContext.xml"}); - WebContext.applicationContext=context; - service =(StudentsService)WebContext.getBean("studentsService"); - } -} + //... ``` ## 3、映射文件配置 diff --git a/mybatis-jpa-extra-core/src/test/java/org/apache/mybatis/jpa/test/MyBatisTestRunner.java b/mybatis-jpa-extra-core/src/test/java/org/apache/mybatis/jpa/test/MyBatisTestRunner.java index 4d6ee82..9c84dd8 100644 --- a/mybatis-jpa-extra-core/src/test/java/org/apache/mybatis/jpa/test/MyBatisTestRunner.java +++ b/mybatis-jpa-extra-core/src/test/java/org/apache/mybatis/jpa/test/MyBatisTestRunner.java @@ -120,9 +120,7 @@ public class MyBatisTestRunner { @Test public void remove() throws Exception{ _logger.info("remove..."); - Students student=new Students(); - student.setId("921d3377-937a-4578-b1e2-92fb23b5e512"); - service.remove(student.getId()); + service.remove("921d3377-937a-4578-b1e2-92fb23b5e512"); } @Test @@ -190,7 +188,7 @@ public class MyBatisTestRunner { } @Test - public void queryByEntity() throws Exception{ + public void query() throws Exception{ _logger.info("find..."); List allListStudents =service.query(new Students("10024")); for (Students s : allListStudents) { @@ -198,12 +196,13 @@ public class MyBatisTestRunner { } } + //WHERE (stdMajor = '政治' and STDAGE > 30 and stdMajor in ( '政治' , '化学' ) or ( stdname = '周瑜' or stdname = '吕蒙' ) ) @Test public void queryByQuery() throws Exception{ _logger.info("find..."); List allListStudents =service.query( 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(new Query().eq("stdname", "周瑜").or().eq("stdname", "吕蒙"))); for (Students s : allListStudents) { _logger.info("Students "+s); } -- GitLab