我正在尝试使用Spring Boot + Spring Data JPA + thymleaf创建一个CRUD应用程序。
当我运行应用程序很好但我无法在浏览器中打开它。我注意到日志中选择的ApplicationContext不是AnnotationConfigEmbeddedWebApplicationContext。
这是我的pom
http://maven.apache.org/xsd/maven-4.0.0.xsd"> 4.0.0
<groupId>com.mycompany</groupId>
<artifactId>Springboot</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>Springboot</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.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>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<!--scope>provided</scope-->
</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>
这是我的application.properties
server.port = 8081
spring.datasource.url = jdbc:sqlserver://local;hosts:1433;databaseName=Graduate6045
spring.datasource.username = sa
spring.datasource.password = P@ssw0rd
spring.datasource.driver = com.microsoft.sqlserver.jdbc.SQLServerDriver
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.SQLServerDialect
logging.level.org.hibernate.SQL = debug
spring.jpa.hibernate.ddl-auto = create
这是我的日志
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.0.2.RELEASE)
2018-06-11 12:03:53.598 INFO 6276 --- [ main] c.m.S.SpringbootApplicationTests : Starting SpringbootApplicationTests on LPTADO76 with PID 6276 (started by S2026045 in D:\New folder\java\projects\Springboot)
2018-06-11 12:03:53.614 INFO 6276 --- [ main] c.m.S.SpringbootApplicationTests : No active profile set, falling back to default profiles: default
2018-06-11 12:03:53.677 INFO 6276 --- [ main] o.s.w.c.s.GenericWebApplicationContext : Refreshing org.springframework.web.context.support.GenericWebApplicationContext@12c8e7b: startup date [Mon Jun 11 12:03:53 GMT+02:00 2018]; root of context hierarchy
2018-06-11 12:03:55.431 INFO 6276 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$a8b18764] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-06-11 12:03:55.884 INFO 6276 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2018-06-11 12:03:57.032 INFO 6276 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2018-06-11 12:03:57.110 INFO 6276 --- [ main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2018-06-11 12:03:57.141 INFO 6276 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [
name: default
...]
2018-06-11 12:03:57.297 INFO 6276 --- [ main] org.hibernate.Version : HHH000412: Hibernate Core {5.2.17.Final}
2018-06-11 12:03:57.297 INFO 6276 --- [ main] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
2018-06-11 12:03:57.390 INFO 6276 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
2018-06-11 12:03:57.609 INFO 6276 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.SQLServerDialect
2018-06-11 12:03:58.374 DEBUG 6276 --- [ main] org.hibernate.SQL : drop table hibernate_sequence
2018-06-11 12:03:58.390 DEBUG 6276 --- [ main] org.hibernate.SQL : drop table users
2018-06-11 12:03:58.390 DEBUG 6276 --- [ main] org.hibernate.SQL : create table hibernate_sequence (next_val numeric(19,0))
2018-06-11 12:03:58.390 DEBUG 6276 --- [ main] org.hibernate.SQL : insert into hibernate_sequence values ( 1 )
2018-06-11 12:03:58.390 DEBUG 6276 --- [ main] org.hibernate.SQL : create table users (id int not null, address varchar(255), email varchar(255), username varchar(255), password varchar(255), primary key (id))
2018-06-11 12:03:58.405 INFO 6276 --- [ main] o.h.t.schema.internal.SchemaCreatorImpl : HHH000476: Executing import script 'org.hibernate.tool.schema.internal.exec.ScriptSourceInputNonExistentImpl@14beff9'
2018-06-11 12:03:58.405 INFO 6276 --- [ main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2018-06-11 12:03:58.876 INFO 6276 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-06-11 12:03:59.736 INFO 6276 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.web.context.support.GenericWebApplicationContext@12c8e7b: startup date [Mon Jun 11 12:03:53 GMT+02:00 2018]; root of context hierarchy
2018-06-11 12:03:59.799 WARN 6276 --- [ main] aWebConfiguration$JpaWebMvcConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2018-06-11 12:03:59.861 INFO 6276 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/],methods=[GET]}" onto public java.lang.String com.mycompany.Springboot.controller.Controller.hello()
2018-06-11 12:03:59.861 INFO 6276 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2018-06-11 12:03:59.861 INFO 6276 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2018-06-11 12:03:59.924 INFO 6276 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-06-11 12:03:59.924 INFO 6276 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-06-11 12:04:00.033 WARN 6276 --- [ main] ion$DefaultTemplateResolverConfiguration : Cannot find template location: classpath:/templates/ (please add some templates or check your Thymeleaf configuration)
2018-06-11 12:04:00.485 INFO 6276 --- [ main] c.m.S.SpringbootApplicationTests : Started SpringbootApplicationTests in 7.339 seconds (JVM running for 9.125)
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 8.499 s - in com.mycompany.Springboot.SpringbootApplicationTests
2018-06-11 12:04:00.738 INFO 6276 --- [ Thread-2] o.s.w.c.s.GenericWebApplicationContext : Closing org.springframework.web.context.support.GenericWebApplicationContext@12c8e7b: startup date [Mon Jun 11 12:03:53 GMT+02:00 2018]; root of context hierarchy
2018-06-11 12:04:00.738 INFO 6276 --- [ Thread-2] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2018-06-11 12:04:00.738 INFO 6276 --- [ Thread-2] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2018-06-11 12:04:00.753 INFO 6276 --- [ Thread-2] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
答案 0 :(得分：0)
根据Spring boot's datasource您的媒体资源名称错误，请使用driver-class-name：
spring.datasource.driver-class-name=com.microsoft.sqlserver.jdbc.SQLServerDriver
或者您可以使用spring.datasource.type属性
您可以完全绕过该算法，并通过设置spring.datasource.type属性指定要使用的连接池
spring.datasource.type=org.apache.tomcat.jdbc.pool.DataSource
答案 1 :(得分：0)
达到相同结果的其他方式。 （注意：反之亦然。我使用spring boot 1.5.4.RELEASE 版本并希望使用 hikari 而不是 tomcat-jdbc ）
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<exclusions>
<exclusion>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jdbc</artifactId>
</dependency>