springboot整合hibernate自動建立資料庫表
阿新 • • 發佈：2019-02-19
新建一個maven專案，我習慣性的建web了，有些依賴是沒必要的，主要用到的依賴有：
| <dependency> |
| <groupId>org.springframework.boot</groupId> |
| <artifactId>spring-boot-starter-data-jpa</artifactId> |
| </dependency> |
| <dependency> |
| <groupId>mysql</groupId> |
| <artifactId>mysql-connector-java</artifactId |
| </dependency> |
下面是我的pom.xml檔案：
| <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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.xy</groupId> <artifactId>springboot-hibernate-createtable</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>springboot-hibernate-createtable Maven Webapp</name> <url>http://maven.apache.org</url> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.2.RELEASE</version> <relativePath /> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <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> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- jsp標籤庫 --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project> |
application.priperties檔案：
| server.port=8080 # Hibernate \u76F8\u5173\u914D\u7F6E ## \u65B9\u8A00 #hibernate.dialect=org.hibernate.dialect.MySQL5Dialect ## \u663E\u793ASql hibernate.show_sql=true ## \u81EA\u52A8\u5EFA\u8868\u65B9\u5F0F #hibernate.hbm2ddl.auto= update ## \u81EA\u52A8\u626B\u63CF\u7684\u5305\u524D\u7F00 entitymanager.packagesToScan= com.xy ## \u6570\u636E\u5E93\u8FDE\u63A5 spring.datasource.url=jdbc:mysql://192.168.26.3:3306/test?\ useUnicode=true&characterEncoding=utf-8&useSSL=true&autoReconnect=true ## \u7528\u6237\u540D spring.datasource.username=root ## \u5BC6\u7801 spring.datasource.password=root ## \u6570\u636E\u5E93\u9A71\u52A8 spring.datasource.driver-class-name=com.mysql.jdbc.Driver ## \u5EFA\u8868\u65B9\u5F0F這裡一定要寫update是修改，不是替換，預設的是替換 spring.jpa.properties.hibernate.hbm2ddl.auto=update # \u65B9\u8A00 spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect |
啟動類App.java：
| package com.xy; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication public class App { public static void main(String[] args) throws Exception { SpringApplication.run(App.class, args); } } |
實體類User.java：
| package com.xy.entity; import javax.persistence.*; /** * */ @Entity @Table(name = "t_user") public class User { @Id @GeneratedValue(strategy = GenerationType.AUTO) private Integer id; @Column(name = "user_name") private String userName; private String password; @Column(name = "nick_name") private String nickName; private String email; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String getNickName() { return nickName; } public void setNickName(String nickName) { this.nickName = nickName; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } } |