1.add ut for TagDao

2.enable auto set createTime and updateTime;

luoo_tag/pom.xml

@@ -42,6 +42,10 @@
 		  <groupId>org.springframework.cloud</groupId>
 		  <artifactId>spring-cloud-starter-openfeign</artifactId>
 	  </dependency>
+	  <dependency>
+		  <groupId>com.h2database</groupId>
+		  <artifactId>h2</artifactId>
+	  </dependency>
   </dependencies>
 	<build>
 		<finalName>app</finalName>

luoo_tag/src/main/java/com/luoo/tag/TagApplication.java

@@ -6,12 +6,15 @@ import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
 import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
 import org.springframework.cloud.openfeign.EnableFeignClients;
 import org.springframework.context.annotation.Bean;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
+
 import util.IdWorker;
 @SpringBootApplication(scanBasePackages = "com.luoo")
 @EnableEurekaClient
 @EnableDiscoveryClient
 @EnableFeignClients
 @EnableCaching
+@EnableJpaAuditing
 public class TagApplication {
 
 	public static void main(String[] args) {

luoo_tag/src/main/java/com/luoo/tag/pojo/Tag.java

@@ -4,14 +4,21 @@ package com.luoo.tag.pojo;
 import lombok.Data;
 
 import javax.persistence.Entity;
+import javax.persistence.EntityListeners;
 import javax.persistence.Id;
 import javax.persistence.Table;
+
+import org.springframework.data.annotation.CreatedDate;
+import org.springframework.data.annotation.LastModifiedDate;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
 import java.io.Serializable;
 import java.time.LocalDateTime;
 
 @Data
 @Entity
 @Table(name = "tb_tag")
+@EntityListeners(AuditingEntityListener.class)
 public class Tag implements Serializable {
     private static final long serialVersionUID = -5593148272164146667L;
 
@@ -46,10 +53,12 @@ public class Tag implements Serializable {
     /**
      * 创建时间
      */
+    @CreatedDate
     private LocalDateTime createTime;
 
     /**
      * 更新时间
      */
+    @LastModifiedDate
     private LocalDateTime updateTime;
 }

luoo_tag/src/test/java/com/luoo/tag/dao/TagDaoTest.java

@@ -0,0 +1,57 @@
+package com.luoo.tag.dao;
+
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+import java.time.LocalDateTime;
+import java.util.stream.IntStream;
+
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import com.luoo.tag.pojo.Tag;
+
+@RunWith(SpringRunner.class)
+@DataJpaTest
+public class TagDaoTest {
+	@Autowired
+	private TestEntityManager entityManager;
+
+	@Autowired
+	private TagDao dao;
+
+	@Test
+	public void testPagable() throws InterruptedException {
+		saveTags();
+		assertEquals(dao.count(), 100L);
+		Pageable pageRequest = PageRequest.of(0, 2);
+		Page<Tag> tags = dao.findAll(pageRequest);
+		assertEquals(tags.getSize(), 2);
+		Tag firstTag = tags.iterator().next();
+		String firstTagId = "tag-0";
+		assertEquals(firstTag.getId(), firstTagId);
+
+		LocalDateTime updateTimeBefore = firstTag.getUpdateTime();
+		firstTag.setState(1);
+		entityManager.persistAndFlush(firstTag);
+		assertEquals(dao.count(), 100L);
+
+		LocalDateTime updateTimeAfter = dao.findById(firstTagId).get().getUpdateTime();
+		assertTrue(updateTimeAfter.isAfter(updateTimeBefore));
+	}
+
+	private void saveTags() {
+		IntStream.range(0, 100).forEach(id -> {
+			Tag tag = new Tag();
+			tag.setId("tag-" + id);
+
+			entityManager.persist(tag);
+		});
+	}
+}