{"id":40266,"date":"2022-12-25T03:00:18","date_gmt":"2023-04-22T11:50:03","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8springboot%e5%92%8cspring-jpa%e8%bf%9e%e6%8e%a5%e5%88%b0%e6%95%b0%e6%8d%ae%e5%ba%93\/"},"modified":"2024-04-29T06:51:37","modified_gmt":"2024-04-28T22:51:37","slug":"%e4%bd%bf%e7%94%a8springboot%e5%92%8cspring-jpa%e8%bf%9e%e6%8e%a5%e5%88%b0%e6%95%b0%e6%8d%ae%e5%ba%93","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8springboot%e5%92%8cspring-jpa%e8%bf%9e%e6%8e%a5%e5%88%b0%e6%95%b0%e6%8d%ae%e5%ba%93\/","title":{"rendered":"\u4f7f\u7528SpringBoot\u548cSpring JPA\u8fde\u63a5\u5230\u6570\u636e\u5e93"},"content":{"rendered":"

\u6211\u5c06\u5c1d\u8bd5\u8bbf\u95ee\u6570\u636e\u5e93\u4f7f\u7528SpringBoot\u3002<\/h2>\n

\u4e3a\u4e86\u4f7f\u7528JPA\uff0c\u9700\u8981\u8fdb\u884c\u4ee5\u4e0b\u64cd\u4f5c\u3002<\/p>\n

\u8fdb\u884c\u6570\u636e\u5e93\u8fde\u63a5\u7684\u8bbe\u7f6e\u5728application.properties\u6587\u4ef6\u5185\u8fdb\u884c
\n\u521b\u5efa\u540d\u4e3aEntity\u548cRepository\u7684\u7c7b<\/p>\n

1. \u7ec4\u6210<\/p>\n

sample-jpa\r\n\u2502  build.gradle\r\n\u2514\u2500src\r\n    \u2514\u2500main\r\n        \u251c\u2500java\r\n        \u2502  \u2514\u2500com\r\n        \u2502      \u2514\u2500jpasample\r\n        \u2502              Employee.java\r\n        \u2502              EmployeeRepository.java\r\n        \u2502              HeloController.java\r\n        \u2502              SamplePrj004JpaApplication.java\r\n        \u2502              ServletInitializer.java\r\n        \u2514\u2500resources\r\n            \u2502  application.properties\r\n            \u251c\u2500static\r\n            \u2514\u2500templates\r\n                    index.html\r\n<\/code><\/pre>\n
2. \u8bbe\u7f6e\u6570\u636e\u5e93\u8fde\u63a5\u4fe1\u606f\uff0c\u5c06\u5176\u914d\u7f6e\u5728application.properties\u6587\u4ef6\u4e2d\uff0c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
spring.datasource.url<\/span>=<\/span>jdbc:mysql:\/\/localhost:3306\/sampledb<\/span>\r\nspring.datasource.username<\/span>=<\/span>testuser<\/span>\r\nspring.datasource.password<\/span>=<\/span>testuser<\/span>\r\nspring.datasource.driverClassName<\/span>=<\/span>com.mysql.jdbc.Driver<\/span>\r\nspring.jpa.database<\/span>=<\/span>MYSQL<\/span>\r\nspring.jpa.hibernate.ddl-auto<\/span>=<\/span>update<\/span>\r\n<\/code><\/pre>\n
\u8bbe\u5b9aspring.jpa.hibernate.ddl-auto=update\u540e\uff0c\u5373\u4f7f\u6570\u636e\u5e93\u4e2d\u6ca1\u6709\u5b9a\u4e49\u8868\uff0c\u4e5f\u4f1a\u521b\u5efa\u8868\u3002<\/p>\n
3. \u4e92\u76f8\u4f9d\u8d56\u5173\u7cfb<\/p>\n
dependencies<\/span> {<\/span>\r\n    compile<\/span>(<\/span>'org.springframework.boot:spring-boot-starter-data-jpa'<\/span>)<\/span>\r\n    compile<\/span>(<\/span>'org.springframework.boot:spring-boot-starter-thymeleaf'<\/span>)<\/span>\r\n    compile<\/span>(<\/span>'org.springframework.boot:spring-boot-starter-web'<\/span>)<\/span>\r\n    runtime<\/span>(<\/span>'org.springframework.boot:spring-boot-devtools'<\/span>)<\/span>\r\n    runtime<\/span>(<\/span>'mysql:mysql-connector-java'<\/span>)<\/span>\r\n    compileOnly<\/span>(<\/span>'org.projectlombok:lombok'<\/span>)<\/span>\r\n    providedRuntime<\/span>(<\/span>'org.springframework.boot:spring-boot-starter-tomcat'<\/span>)<\/span>\r\n    testCompile<\/span>(<\/span>'org.springframework.boot:spring-boot-starter-test'<\/span>)<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
4. \u5728\u6570\u636e\u5e93\u4e2d\u5b9a\u4e49\u8868\u683c\u3002<\/p>\n
\u6211\u6b63\u5728\u63d0\u4f9b\u4e00\u4e2a\u4f5c\u4e3a\u641c\u7d22\u5458\u5de5\u4e3b\u6587\u4ef6\u7684\u793a\u4f8b\u3002<\/p>\n
\r\nCREATE<\/span> TABLE<\/span> `m_emp`<\/span> (<\/span>\r\n  `empno`<\/span> bigint<\/span>(<\/span>20<\/span>)<\/span> NOT<\/span> NULL<\/span> AUTO_INCREMENT<\/span>,<\/span>\r\n  `empname`<\/span> varchar<\/span>(<\/span>255<\/span>)<\/span> DEFAULT<\/span> NULL<\/span>,<\/span>\r\n  `departmentid`<\/span> varchar<\/span>(<\/span>10<\/span>)<\/span> DEFAULT<\/span> NULL<\/span>,<\/span>\r\n  PRIMARY<\/span> KEY<\/span> (<\/span>`empno`<\/span>)<\/span>\r\n)<\/span> ENGINE<\/span>=<\/span>InnoDB<\/span> AUTO_INCREMENT<\/span>=<\/span>5<\/span> DEFAULT<\/span> CHARSET<\/span>=<\/span>utf8<\/span>\r\n<\/code><\/pre>\n
INSERT<\/span> INTO<\/span> sampledb<\/span>.<\/span>m_emp<\/span>\r\n(<\/span>empname<\/span>,<\/span>departmentid<\/span>)<\/span>\r\nVALUES<\/span>\r\n (<\/span>'\u5f93\u696d\u54e1A'<\/span>,<\/span>'10101001'<\/span>)<\/span>\r\n,(<\/span>'\u5f93\u696d\u54e1B'<\/span>,<\/span>'10101001'<\/span>)<\/span>\r\n,(<\/span>'\u5f93\u696d\u54e1C'<\/span>,<\/span>'10101002'<\/span>)<\/span>\r\n,(<\/span>'\u5f93\u696d\u54e1D'<\/span>,<\/span>'10101003'<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u521b\u5efa\u4e00\u4e2a\u540d\u4e3aEntity\u7684\u7c7b\u3002<\/p>\n
import<\/span> javax.persistence.Column<\/span>;<\/span>\r\nimport<\/span> javax.persistence.Entity<\/span>;<\/span>\r\nimport<\/span> javax.persistence.GeneratedValue<\/span>;<\/span>\r\nimport<\/span> javax.persistence.GenerationType<\/span>;<\/span>\r\nimport<\/span> javax.persistence.Id<\/span>;<\/span>\r\nimport<\/span> javax.persistence.Table<\/span>;<\/span>\r\n\r\n@Entity<\/span>\r\n@Table<\/span>(<\/span>name<\/span>=<\/span>\"m_emp\"<\/span>)<\/span>\r\npublic<\/span> class<\/span> Employee<\/span> {<\/span>\r\n    @Id<\/span>\r\n    @Column<\/span>(<\/span>name<\/span>=<\/span>\"empno\"<\/span>)<\/span>\r\n    @GeneratedValue<\/span>(<\/span>strategy<\/span>=<\/span>GenerationType<\/span>.<\/span>IDENTITY<\/span>)<\/span>\r\n    private<\/span> Long<\/span> id<\/span>;<\/span>\r\n    private<\/span> String<\/span> empname<\/span>;<\/span>\r\n    public<\/span> Long<\/span> getId<\/span>()<\/span> {<\/span>\r\n        return<\/span> id<\/span>;<\/span>\r\n    }<\/span>\r\n    public<\/span> void<\/span> setId<\/span>(<\/span>Long<\/span> id<\/span>)<\/span> {<\/span>\r\n        this<\/span>.<\/span>id<\/span> =<\/span> id<\/span>;<\/span>\r\n    }<\/span>\r\n    public<\/span> String<\/span> getEmpname<\/span>()<\/span> {<\/span>\r\n        return<\/span> empname<\/span>;<\/span>\r\n    }<\/span>\r\n    public<\/span> void<\/span> setEmpname<\/span>(<\/span>String<\/span> empname<\/span>)<\/span> {<\/span>\r\n        this<\/span>.<\/span>empname<\/span> =<\/span> empname<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
6. \u5b58\u50a8\u5e93 ch\u00fa k\u00f9)<\/p>\n
import<\/span> org.springframework.data.jpa.repository.JpaRepository<\/span>;<\/span>\r\nimport<\/span> org.springframework.stereotype.Repository<\/span>;<\/span>\r\n\r\n@Repository<\/span>\r\npublic<\/span> interface<\/span> EmployeeRepository<\/span> extends<\/span> JpaRepository<\/span><<\/span>Employee<\/span>,<\/span> Long<\/span>><\/span> {}<\/span>\r\n\r\n<\/code><\/pre>\n
7.\u63a7\u5236\u5668<\/p>\n
\u6b63\u5728\u5168\u9762\u67e5\u627e\u5458\u5de5\u4e3b\u6570\u636e\u3002<\/p>\n
import<\/span> java.util.List<\/span>;<\/span>\r\n\r\nimport<\/span> javax.transaction.Transactional<\/span>;<\/span>\r\n\r\nimport<\/span> org.springframework.beans.factory.annotation.Autowired<\/span>;<\/span>\r\nimport<\/span> org.springframework.stereotype.Controller<\/span>;<\/span>\r\nimport<\/span> org.springframework.ui.Model<\/span>;<\/span>\r\nimport<\/span> org.springframework.web.bind.annotation.RequestMapping<\/span>;<\/span>\r\nimport<\/span> org.springframework.web.bind.annotation.RequestMethod<\/span>;<\/span>\r\n\r\n@Controller<\/span>\r\npublic<\/span> class<\/span> HeloController<\/span> {<\/span>\r\n    @Autowired<\/span>\r\n    EmployeeRepository<\/span> empRepository<\/span>;<\/span>\r\n    @RequestMapping<\/span>(<\/span>value<\/span> =<\/span> \"\/\"<\/span>,<\/span> method<\/span> =<\/span> RequestMethod<\/span>.<\/span>GET<\/span>)<\/span>\r\n    public<\/span> String<\/span> index<\/span>(<\/span>Model<\/span> model<\/span>)<\/span> {<\/span>\r\n        List<\/span><<\/span>Employee<\/span>><\/span> emplist<\/span>=<\/span>empRepository<\/span>.<\/span>findAll<\/span>();<\/span>\r\n        model<\/span>.<\/span>addAttribute<\/span>(<\/span>\"emplist\"<\/span>,<\/span> emplist<\/span>);<\/span>\r\n        return<\/span> \"index\"<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u8bf7\u63d0\u4f9b\u66f4\u591a\u80cc\u666f\u4fe1\u606f\uff0c\u5e76\u660e\u786e\u60a8\u6240\u9700\u8981\u7684\u7ffb\u8bd1\u5185\u5bb9\u3002<\/p>\n
<!DOCTYPE html><\/span>\r\n<html<\/span> xmlns=<\/span>\"http:\/\/www.w3.org\/1999\/xhtml\"<\/span> xmlns:th=<\/span>\"http:\/\/www.thymeleaf.org\"<\/span>><\/span>\r\n    <head><\/span>\r\n        <title><\/span>Springboot<\/title><\/span>\r\n        <meta<\/span> charset=<\/span>\"utf-8\"<\/span> \/><\/span>\r\n    <\/head><\/span>\r\n    <body><\/span>\r\n        <h1<\/span> th:text=<\/span>\"${title}\"<\/span>><\/h1><\/span>\r\n        <table><\/span>\r\n            <tr<\/span> th:each=<\/span>\"emp : ${emplist}\"<\/span> th:object=<\/span>\"${emp}\"<\/span>><\/span>\r\n                <td<\/span> th:text=<\/span>\"*{id}\"<\/span>><\/td><\/span>\r\n                <td<\/span> th:text=<\/span>\"*{empname}\"<\/span>><\/td><\/span>\r\n            <\/tr><\/span>\r\n        <\/table><\/span>\r\n    <\/body><\/span>\r\n<\/html><\/span>\r\n<\/code><\/pre>\n
\u6211\u5c06\u8fd0\u884cSpringboot\u5e76\u5c1d\u8bd5\u8bbf\u95eeURL\u3002
\nhttp:\/\/localhost:8080\/<\/p>\n
\"image.png\"<\/div>\n
\u88ab\u5ba3\u5e03\u65e0\u4e8b\u3002<\/p>\n
2019\u5e7410\u67088\u65e5 \u6dfb\u52a0\u8865\u5145<\/h1>\n
\u5982\u679c\u8981\u8fde\u63a5\u5230PostgreSQL<\/p>\n
application.properties\u7684\u5185\u5bb9\u5982\u4e0b\u3002<\/p>\n
spring.jpa.database<\/span>=<\/span>POSTGRESQL<\/span>\r\nspring.datasource.url<\/span>=<\/span>jdbc:postgresql:\/\/localhost:5432\/testdb<\/span>\r\nspring.datasource.username<\/span>=<\/span>testuser<\/span>\r\nspring.datasource.password<\/span>=<\/span>secret<\/span>\r\nspring.jpa.hibernate.ddl-auto<\/span>=<\/span>validate<\/span>\r\nspring.jpa.properties.hibernate.format_sql<\/span>=<\/span>true<\/span>\r\nlogging.level.org.hibernate.SQL<\/span>=<\/span>DEBUG<\/span>\r\nlogging.level.org.hibernate.type.descriptor.sql.BasicBinder<\/span>=<\/span>TRACE<\/span>\r\n<\/code><\/pre>\n
\u7136\u800c\uff0c\u4ec5\u4ec5\u8fd9\u6837\u505a\u4f1a\u5bfc\u81f4\u4ee5\u4e0b\u9519\u8bef\u7684\u53d1\u751f\u3002<\/p>\n
Caused by: java.sql.SQLFeatureNotSupportedException: org.postgresql.jdbc.PgConnection.createClob() \u30e1\u30bd\u30c3\u30c9\u306f\u307e\u3060\u5b9f\u88c5\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\r\n    at org.postgresql.Driver.notImplemented(Driver.java:688) ~[postgresql-42.2.5.jar:42.2.5]\r\n    at org.postgresql.jdbc.PgConnection.createClob(PgConnection.java:1269) ~[postgresql-42.2.5.jar:42.2.5]\r\n<\/code><\/pre>\n
\u89e3\u51b3\u529e\u6cd5<\/p>\n
\u5c06hibernate.properties\u6587\u4ef6\u521b\u5efa\u5728resources\u6587\u4ef6\u5939\u7684\u76f4\u63a5\u4e0b\u7ea7\uff08\u4e0eapplication.properties\u6587\u4ef6\u76f8\u540c\u7684\u5c42\u7ea7\uff09\u4e0a\u3002<\/p>\n
hibernate.jdbc.lob.non_contextual_creation<\/span> =<\/span> true<\/span>\r\n<\/code><\/pre>\n
\u6ca1\u95ee\u9898\uff0c\u8fde\u63a5\u6210\u529f\u3002<\/p>\n
2019-10-08 23:37:42.626  INFO 5464 --- [           main] org.hibernate.Version                    : HHH000412: Hibernate Core {5.3.7.Final}\r\n2019-10-08 23:37:42.626  INFO 5464 --- [           main] org.hibernate.cfg.Environment            : HHH000205: Loaded properties from resource hibernate.properties: {hibernate.bytecode.use_reflection_optimizer=false, hibernate.jdbc.lob.non_contextual_creation=true}\r\n2019-10-08 23:37:42.876  INFO 5464 --- [           main] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.0.4.Final}\r\n2019-10-08 23:37:43.485  INFO 5464 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...\r\n2019-10-08 23:37:43.641  INFO 5464 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Start completed.\r\n2019-10-08 23:37:43.657  INFO 5464 --- [           main] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.PostgreSQL95Dialect\r\n2019-10-08 23:37:43.891  INFO 5464 --- [           main] o.h.e.j.e.i.LobCreatorBuilderImpl        : HHH000421: Disabling contextual LOB creation as hibernate.jdbc.lob.non_contextual_creation is true\r\n2019-10-08 23:37:43.907  INFO 5464 --- [           main] org.hibernate.type.BasicTypeRegistry     : HHH000270: Type registration [java.util.UUID] overrides previous : org.hibernate.type.UUIDBinaryType@2e590b\r\n2019-10-08 23:37:44.289  INFO 5464 --- [           main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'\r\n2019-10-08 23:37:47.675  INFO 5464 --- [           main] o.s.b.web.embedded.netty.NettyWebServer  : Netty started on port(s): 8080\r\n2019-10-08 23:37:47.686  INFO 5464 --- [           main] com.example.SecurityExampleApplication   : Started SecurityExampleApplication in 9.322 seconds (JVM running for 10.28)\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u6211\u5c06\u5c1d\u8bd5\u8bbf\u95ee\u6570\u636e\u5e93\u4f7f\u7528SpringBoot\u3002 \u4e3a\u4e86\u4f7f\u7528JPA\uff0c\u9700\u8981\u8fdb\u884c\u4ee5\u4e0b\u64cd\u4f5c\u3002 \u8fdb\u884c\u6570\u636e\u5e93\u8fde\u63a5\u7684\u8bbe\u7f6e\u5728app […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-40266","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n\u4f7f\u7528SpringBoot\u548cSpring JPA\u8fde\u63a5\u5230\u6570\u636e\u5e93 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528springboot\u548cspring-jpa\u8fde\u63a5\u5230\u6570\u636e\u5e93\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4f7f\u7528SpringBoot\u548cSpring JPA\u8fde\u63a5\u5230\u6570\u636e\u5e93\" \/>\n<meta property=\"og:description\" content=\"\u6211\u5c06\u5c1d\u8bd5\u8bbf\u95ee\u6570\u636e\u5e93\u4f7f\u7528SpringBoot\u3002 \u4e3a\u4e86\u4f7f\u7528JPA\uff0c\u9700\u8981\u8fdb\u884c\u4ee5\u4e0b\u64cd\u4f5c\u3002 \u8fdb\u884c\u6570\u636e\u5e93\u8fde\u63a5\u7684\u8bbe\u7f6e\u5728app […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528springboot\u548cspring-jpa\u8fde\u63a5\u5230\u6570\u636e\u5e93\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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