#77 jpa 错误使用case

spring-boot/102-jpa-errorcase/pom.xml

@@ -0,0 +1,25 @@
+<?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">
+    <parent>
+        <artifactId>spring-boot</artifactId>
+        <groupId>com.git.hui.boot</groupId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>102-jpa-errorcase</artifactId>
+
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+        </dependency>
+    </dependencies>
+</project>

spring-boot/102-jpa-errorcase/src/main/java/com/git/hui/boot/jpacase/Application.java

@@ -0,0 +1,16 @@
+package com.git.hui.boot.jpacase;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * Created by @author yihui in 19:07 19/12/18.
+ */
+//@SpringBootApplication
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class);
+    }
+
+}

spring-boot/102-jpa-errorcase/src/main/java/com/git/hui/boot/jpacase/app/ErrorApplication.java

@@ -0,0 +1,16 @@
+package com.git.hui.boot.jpacase.app;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * Created by @author yihui in 19:07 19/12/18.
+ */
+@SpringBootApplication
+public class ErrorApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(ErrorApplication.class);
+    }
+
+}

spring-boot/102-jpa-errorcase/src/main/java/com/git/hui/boot/jpacase/app/ErrorJpaCaseAutoConfiguration.java

@@ -0,0 +1,13 @@
+package com.git.hui.boot.jpacase.app;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * Created by @author yihui in 18:31 19/12/18.
+ */
+@Configuration
+@ComponentScan(basePackages = "com.git.hui.boot.jpacase")
+public class ErrorJpaCaseAutoConfiguration {
+
+}

spring-boot/102-jpa-errorcase/src/main/java/com/git/hui/boot/jpacase/app2/TrueApplication.java

@@ -0,0 +1,25 @@
+package com.git.hui.boot.jpacase.app2;
+
+import com.git.hui.boot.jpacase.app.ErrorApplication;
+import com.git.hui.boot.jpacase.entity.MetaGroupPO;
+import com.git.hui.boot.jpacase.manager.GroupManager;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * Created by @author yihui in 19:26 19/12/18.
+ */
+@SpringBootApplication
+public class TrueApplication {
+
+    public TrueApplication(GroupManager groupManager) {
+        int groupId = groupManager.addGroup("true-group", "dev", "正确写入!!!");
+        System.out.println("add groupId: " + groupId);
+        MetaGroupPO po = groupManager.getOnlineGroup("true-group", "dev");
+        System.out.println(po);
+    }
+
+    public static void main(String[] args) {
+        SpringApplication.run(ErrorApplication.class);
+    }
+}

spring-boot/102-jpa-errorcase/src/main/java/com/git/hui/boot/jpacase/app2/TrueJpaCaseAutoConfiguration.java

@@ -0,0 +1,14 @@
+package com.git.hui.boot.jpacase.app2;
+
+import org.springframework.boot.autoconfigure.domain.EntityScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+
+/**
+ * Created by @author yihui in 19:27 19/12/18.
+ */
+@Configuration
+@EnableJpaRepositories("com.git.hui.boot.jpacase")
+@EntityScan("com.git.hui.boot.jpacase.entity")
+public class TrueJpaCaseAutoConfiguration {
+}

spring-boot/102-jpa-errorcase/src/main/java/com/git/hui/boot/jpacase/entity/MetaGroupPO.java

@@ -0,0 +1,37 @@
+package com.git.hui.boot.jpacase.entity;
+
+import lombok.Data;
+
+import javax.persistence.*;
+import java.sql.Timestamp;
+
+/**
+ * Created by @author yihui in 18:28 19/12/18.
+ */
+@Data
+@Entity
+@Table(name = "meta_group")
+public class MetaGroupPO {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Integer id;
+
+    @Column(name = "`group`")
+    private String group;
+
+    @Column(name = "`profile`")
+    private String profile;
+
+    @Column(name = "`desc`")
+    private String desc;
+
+    @Column(name = "`deleted`")
+    private Integer deleted;
+
+    @Column(name = "create_time")
+    private Timestamp createTime;
+
+    @Column(name = "update_time")
+    private Timestamp updateTime;
+}
+

spring-boot/102-jpa-errorcase/src/main/java/com/git/hui/boot/jpacase/manager/GroupManager.java

@@ -0,0 +1,50 @@
+package com.git.hui.boot.jpacase.manager;
+
+import com.git.hui.boot.jpacase.entity.MetaGroupPO;
+import com.git.hui.boot.jpacase.repository.GroupJPARepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.sql.Timestamp;
+import java.time.Instant;
+
+/**
+ * Created by @author yihui in 18:30 19/12/18.
+ */
+@Component
+public class GroupManager {
+    @Autowired
+    private GroupJPARepository groupJPARepository;
+
+    public GroupManager() {
+        System.out.println("group manager init!");
+    }
+
+    public MetaGroupPO getOnlineGroup(String group, String profile) {
+        return groupJPARepository.findByGroupAndProfileAndDeleted(group, profile, 0);
+    }
+
+    public Integer addGroup(String group, String profile, String desc) {
+        MetaGroupPO jpa = new MetaGroupPO();
+        jpa.setGroup(group);
+        jpa.setDesc(desc);
+        jpa.setProfile(profile);
+        jpa.setDeleted(0);
+        Timestamp timestamp = Timestamp.from(Instant.now());
+        jpa.setCreateTime(timestamp);
+        jpa.setUpdateTime(timestamp);
+        MetaGroupPO res = groupJPARepository.save(jpa);
+        return res.getId();
+    }
+
+    @Transactional
+    public boolean updateGroup(Integer groupId, String desc) {
+        return groupJPARepository.updateDesc(groupId, desc) > 0;
+    }
+
+    @Transactional
+    public boolean deleteGroup(Integer groupId) {
+        return groupJPARepository.logicDeleted(groupId) > 0;
+    }
+}

spring-boot/102-jpa-errorcase/src/main/java/com/git/hui/boot/jpacase/package-info.java

@@ -0,0 +1,5 @@
+/**
+ * jpa 易错case
+ * Created by @author yihui in 18:27 19/12/18.
+ */
+package com.git.hui.boot.jpacase;

spring-boot/102-jpa-errorcase/src/main/java/com/git/hui/boot/jpacase/repository/GroupJPARepository.java

@@ -0,0 +1,26 @@
+package com.git.hui.boot.jpacase.repository;
+
+import com.git.hui.boot.jpacase.entity.MetaGroupPO;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
+
+import java.util.List;
+
+/**
+ * Created by @author yihui in 19:12 19/12/16.
+ */
+public interface GroupJPARepository extends JpaRepository<MetaGroupPO, Integer> {
+
+    List<MetaGroupPO> findByProfile(String profile);
+
+    MetaGroupPO findByGroupAndProfileAndDeleted(String group, String profile, Integer deleted);
+
+    @Modifying
+    @Query("update MetaGroupPO m set m.desc=?2 where m.id=?1")
+    int updateDesc(int groupId, String desc);
+
+    @Modifying
+    @Query("update MetaGroupPO m set m.deleted=1 where m.id=?1")
+    int logicDeleted(int groupId);
+}

spring-boot/102-jpa-errorcase/src/main/resources/application.properties

@@ -0,0 +1,10 @@
+## DataSource
+spring.datasource.url=jdbc:mysql://127.0.0.1:3306/story?useUnicode=true&characterEncoding=UTF-8&useSSL=false
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+spring.datasource.username=root
+spring.datasource.password=
+spring.jpa.database=MYSQL
+spring.jpa.hibernate.ddl-auto=none
+spring.jpa.show-sql=true
+spring.jackson.serialization.indent_output=true
+spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl

spring-boot/102-jpa/pom.xml

@@ -20,6 +20,11 @@
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
         </dependency>
+        <dependency>
+            <groupId>com.git.hui.boot</groupId>
+            <artifactId>102-jpa-errorcase</artifactId>
+            <version>0.0.1-SNAPSHOT</version>
+        </dependency>
     </dependencies>
 
 </project>

spring-boot/102-jpa/src/main/java/com/git/hui/boot/jpa/Application.java

@@ -1,11 +1,5 @@
 package com.git.hui.boot.jpa;
 
-import com.git.hui.boot.jpa.demo.JpaDeleteDemo;
-import com.git.hui.boot.jpa.demo.JpaInsertDemo;
-import com.git.hui.boot.jpa.demo.JpaQueryDemo;
-import com.git.hui.boot.jpa.demo.JpaUpdateDemo;
-import com.git.hui.boot.jpa.entity.MoneyPO;
-import com.git.hui.boot.jpa.repository.MoneyDemoRepository;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
@@ -14,20 +8,27 @@
  */
 @SpringBootApplication
 public class Application {
-    public Application(MoneyDemoRepository moneyDemoRepository, JpaQueryDemo jpaQueryDemo, JpaInsertDemo jpaInsertDemo,
-            JpaUpdateDemo jpaUpdateDemo, JpaDeleteDemo jpaDeleteDemo) {
-        //        MoneyPO moneyPO = moneyDemoRepository.findById(1).get();
-        //        System.out.println(moneyPO);
-        //        System.out.println("-----------------------");
 
-//                jpaQueryDemo.queryTest();
-
-                jpaInsertDemo.testInsert();
-        //        jpaUpdateDemo.testUpdate();
-
-//        jpaDeleteDemo.testDelete();
+    public Application() {
+//        groupManager.addGroup("test", "desc", "weqr");
     }
 
+//    public Application(MoneyDemoRepository moneyDemoRepository,
+    //            JpaQueryDemo jpaQueryDemo, JpaInsertDemo jpaInsertDemo,
+    //            JpaUpdateDemo jpaUpdateDemo, JpaDeleteDemo jpaDeleteDemo,
+    //            GroupManager groupManager) {
+    //        //        MoneyPO moneyPO = moneyDemoRepository.findById(1).get();
+    //        //        System.out.println(moneyPO);
+    //        //        System.out.println("-----------------------");
+    //
+    //        //                jpaQueryDemo.queryTest();
+    //
+    //        //                jpaInsertDemo.testInsert();
+    //        //        jpaUpdateDemo.testUpdate();
+    //
+    //        //        jpaDeleteDemo.testDelete();
+    //    }
+
     public static void main(String[] args) {
         SpringApplication.run(Application.class);
     }

spring-boot/pom.xml

@@ -59,6 +59,7 @@
         <module>211-web-servlet</module>
         <module>212-web-listener</module>
         <module>005-config-selector</module>
+        <module>102-jpa-errorcase</module>
     </modules>
 
     <artifactId>spring-boot</artifactId>