postgresql-9.0-801.jdbc4.jar 下载
时间: 2024-01-22 12:00:38 浏览: 234
postgresql-9.0-801.jdbc4.jar是一个用于连接Java和PostgreSQL数据库的JDBC驱动程序文件。如果你需要下载这个文件,可以通过以下步骤进行:
首先,打开你的网页浏览器,然后输入“postgresql-9.0-801.jdbc4.jar下载”进行搜索。
在搜索结果中,你会找到官方的PostgreSQL网站或者一些第三方网站提供的下载链接。建议优先选择官方网站或者一些知名的软件下载网站进行下载,以确保文件的安全性和完整性。
点击下载链接,根据网站的指引完成下载过程。有些网站可能会要求你创建一个账户或者填写一些个人信息,根据情况进行操作。
完成下载后,找到下载的文件在你的电脑上的存储位置。你可以将它保存在一个你容易找到的地方,比如桌面或者创建一个专门存放数据库相关文件的文件夹。
在你将postgresql-9.0-801.jdbc4.jar文件保存在合适的位置后,你可以根据你的项目需要,将这个文件加载到你的Java项目中,然后就可以使用它来连接和操作PostgreSQL数据库了。
需要注意的是,下载文件时要注意文件来源的可信度,以免下载到病毒或者恶意软件。另外,建议及时将下载的文件进行安全扫描检测,确保文件的安全性。
相关问题
C:\Users\Administrator\.jdks\ms-17.0.15\bin\java.exe -XX:TieredStopAtLevel=1 -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-Dmanagement.endpoints.jmx.exposure.include=*" "-javaagent:C:\Users\Administrator\AppData\Local\Programs\IntelliJ IDEA Ultimate 2025.1.3\lib\idea_rt.jar=63069" -Dfile.encoding=UTF-8 -classpath C:\Users\Administrator\IdeaProjects\demo1\target\classes;D:\apache-maven-3.9.10\maven-repository\org\springframework\boot\spring-boot-starter-jdbc\2.6.13\spring-boot-starter-jdbc-2.6.13.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\boot\spring-boot-starter\2.6.13\spring-boot-starter-2.6.13.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\boot\spring-boot\2.6.13\spring-boot-2.6.13.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\boot\spring-boot-autoconfigure\2.6.13\spring-boot-autoconfigure-2.6.13.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\boot\spring-boot-starter-logging\2.6.13\spring-boot-starter-logging-2.6.13.jar;D:\apache-maven-3.9.10\maven-repository\ch\qos\logback\logback-classic\1.2.11\logback-classic-1.2.11.jar;D:\apache-maven-3.9.10\maven-repository\ch\qos\logback\logback-core\1.2.11\logback-core-1.2.11.jar;D:\apache-maven-3.9.10\maven-repository\org\apache\logging\log4j\log4j-to-slf4j\2.17.2\log4j-to-slf4j-2.17.2.jar;D:\apache-maven-3.9.10\maven-repository\org\apache\logging\log4j\log4j-api\2.17.2\log4j-api-2.17.2.jar;D:\apache-maven-3.9.10\maven-repository\org\slf4j\jul-to-slf4j\1.7.36\jul-to-slf4j-1.7.36.jar;D:\apache-maven-3.9.10\maven-repository\jakarta\annotation\jakarta.annotation-api\1.3.5\jakarta.annotation-api-1.3.5.jar;D:\apache-maven-3.9.10\maven-repository\org\yaml\snakeyaml\1.29\snakeyaml-1.29.jar;D:\apache-maven-3.9.10\maven-repository\com\zaxxer\HikariCP\4.0.3\HikariCP-4.0.3.jar;D:\apache-maven-3.9.10\maven-repository\org\slf4j\slf4j-api\1.7.36\slf4j-api-1.7.36.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\spring-jdbc\5.3.23\spring-jdbc-5.3.23.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\spring-beans\5.3.23\spring-beans-5.3.23.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\spring-tx\5.3.23\spring-tx-5.3.23.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\boot\spring-boot-starter-web\2.6.13\spring-boot-starter-web-2.6.13.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\boot\spring-boot-starter-json\2.6.13\spring-boot-starter-json-2.6.13.jar;D:\apache-maven-3.9.10\maven-repository\com\fasterxml\jackson\core\jackson-databind\2.13.4.2\jackson-databind-2.13.4.2.jar;D:\apache-maven-3.9.10\maven-repository\com\fasterxml\jackson\core\jackson-annotations\2.13.4\jackson-annotations-2.13.4.jar;D:\apache-maven-3.9.10\maven-repository\com\fasterxml\jackson\core\jackson-core\2.13.4\jackson-core-2.13.4.jar;D:\apache-maven-3.9.10\maven-repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.13.4\jackson-datatype-jdk8-2.13.4.jar;D:\apache-maven-3.9.10\maven-repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.13.4\jackson-datatype-jsr310-2.13.4.jar;D:\apache-maven-3.9.10\maven-repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.13.4\jackson-module-parameter-names-2.13.4.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\boot\spring-boot-starter-tomcat\2.6.13\spring-boot-starter-tomcat-2.6.13.jar;D:\apache-maven-3.9.10\maven-repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.68\tomcat-embed-core-9.0.68.jar;D:\apache-maven-3.9.10\maven-repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.68\tomcat-embed-el-9.0.68.jar;D:\apache-maven-3.9.10\maven-repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.68\tomcat-embed-websocket-9.0.68.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\spring-web\5.3.23\spring-web-5.3.23.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\spring-webmvc\5.3.23\spring-webmvc-5.3.23.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\spring-aop\5.3.23\spring-aop-5.3.23.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\spring-context\5.3.23\spring-context-5.3.23.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\spring-expression\5.3.23\spring-expression-5.3.23.jar;D:\apache-maven-3.9.10\maven-repository\org\mybatis\spring\boot\mybatis-spring-boot-starter\2.2.2\mybatis-spring-boot-starter-2.2.2.jar;D:\apache-maven-3.9.10\maven-repository\org\mybatis\spring\boot\mybatis-spring-boot-autoconfigure\2.2.2\mybatis-spring-boot-autoconfigure-2.2.2.jar;D:\apache-maven-3.9.10\maven-repository\org\mybatis\mybatis\3.5.9\mybatis-3.5.9.jar;D:\apache-maven-3.9.10\maven-repository\org\mybatis\mybatis-spring\2.0.7\mybatis-spring-2.0.7.jar;D:\apache-maven-3.9.10\maven-repository\com\h2database\h2\1.4.200\h2-1.4.200.jar;D:\apache-maven-3.9.10\maven-repository\com\mysql\mysql-connector-j\8.0.31\mysql-connector-j-8.0.31.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\spring-core\5.3.23\spring-core-5.3.23.jar;D:\apache-maven-3.9.10\maven-repository\org\springframework\spring-jcl\5.3.23\spring-jcl-5.3.23.jar com.example.demo.Demo1Application . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v2.6.13) 2025-07-11 15:49:04.751 INFO 11328 --- [ main] com.example.demo.Demo1Application : Starting Demo1Application using Java 17.0.15 on 闫晓强 with PID 11328 (C:\Users\Administrator\IdeaProjects\demo1\target\classes started by Administrator in C:\Users\Administrator\IdeaProjects\demo1) 2025-07-11 15:49:04.753 INFO 11328 --- [ main] com.example.demo.Demo1Application : No active profile set, falling back to 1 default profile: "default" 2025-07-11 15:49:05.202 WARN 11328 --- [ main] o.m.s.mapper.ClassPathMapperScanner : No MyBatis mapper was found in '[com.example.demo]' package. Please check your configuration. 2025-07-11 15:49:05.483 INFO 11328 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http) 2025-07-11 15:49:05.490 INFO 11328 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat] 2025-07-11 15:49:05.490 INFO 11328 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.68] 2025-07-11 15:49:05.561 INFO 11328 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext 2025-07-11 15:49:05.561 INFO 11328 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 772 ms 2025-07-11 15:49:05.583 INFO 11328 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting... 2025-07-11 15:49:05.701 INFO 11328 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed. 2025-07-11 15:49:05.707 INFO 11328 --- [ main] o.s.b.a.h2.H2ConsoleAutoConfiguration : H2 console available at '/h2-console'. Database available at 'jdbc:mysql://localhost:3306/mysqlservicedbone?useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&useUnicode=true&characterEncoding=UTF-8' 2025-07-11 15:49:05.860 INFO 11328 --- [ main] o.s.b.a.w.s.WelcomePageHandlerMapping : Adding welcome page: class path resource [static/index.html] 2025-07-11 15:49:05.967 WARN 11328 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSourceScriptDatabaseInitializer' defined in class path resource [org/springframework/boot/autoconfigure/sql/init/DataSourceInitializationConfiguration.class]: Invocation of init method failed; nested exception is org.springframework.jdbc.datasource.init.UncategorizedScriptException: Failed to execute database script from resource [class path resource [schema.sql]]; nested exception is java.lang.IllegalArgumentException: 'script' must not be null or empty 2025-07-11 15:49:05.968 INFO 11328 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated... 2025-07-11 15:49:05.974 INFO 11328 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed. 2025-07-11 15:49:05.976 INFO 11328 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat] 2025-07-11 15:49:05.983 INFO 11328 --- [ main] ConditionEvaluationReportLoggingListener : Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2025-07-11 15:49:05.995 ERROR 11328 --- [ main] o.s.boot.SpringApplication : Application run failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSourceScriptDatabaseInitializer' defined in class path resource [org/springframework/boot/autoconfigure/sql/init/DataSourceInitializationConfiguration.class]: Invocation of init method failed; nested exception is org.springframework.jdbc.datasource.init.UncategorizedScriptException: Failed to execute database script from resource [class path resource [schema.sql]]; nested exception is java.lang.IllegalArgumentException: 'script' must not be null or empty at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1804) ~[spring-beans-5.3.23.jar:5.3.23] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.23.jar:5.3.23] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.23.jar:5.3.23] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.23.jar:5.3.23] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.23.jar:5.3.23] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.23.jar:5.3.23] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.23.jar:5.3.23] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.3.23.jar:5.3.23] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.23.jar:5.3.23] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:955) ~[spring-beans-5.3.23.jar:5.3.23] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) ~[spring-context-5.3.23.jar:5.3.23] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.23.jar:5.3.23] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.13.jar:2.6.13] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:745) ~[spring-boot-2.6.13.jar:2.6.13] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:420) ~[spring-boot-2.6.13.jar:2.6.13] at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.6.13.jar:2.6.13] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1317) ~[spring-boot-2.6.13.jar:2.6.13] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306) ~[spring-boot-2.6.13.jar:2.6.13] at com.example.demo.Demo1Application.main(Demo1Application.java:10) ~[classes/:na] Caused by: org.springframework.jdbc.datasource.init.UncategorizedScriptException: Failed to execute database script from resource [class path resource [schema.sql]]; nested exception is java.lang.IllegalArgumentException: 'script' must not be null or empty at org.springframework.jdbc.datasource.init.ScriptUtils.executeSqlScript(ScriptUtils.java:305) ~[spring-jdbc-5.3.23.jar:5.3.23] at org.springframework.jdbc.datasource.init.ResourceDatabasePopulator.populate(ResourceDatabasePopulator.java:254) ~[spring-jdbc-5.3.23.jar:5.3.23] at org.springframework.jdbc.datasource.init.DatabasePopulatorUtils.execute(DatabasePopulatorUtils.java:54) ~[spring-jdbc-5.3.23.jar:5.3.23] at org.springframework.boot.jdbc.init.DataSourceScriptDatabaseInitializer.runScripts(DataSourceScriptDatabaseInitializer.java:90) ~[spring-boot-2.6.13.jar:2.6.13] at org.springframework.boot.sql.init.AbstractScriptDatabaseInitializer.runScripts(AbstractScriptDatabaseInitializer.java:145) ~[spring-boot-2.6.13.jar:2.6.13] at org.springframework.boot.sql.init.AbstractScriptDatabaseInitializer.applyScripts(AbstractScriptDatabaseInitializer.java:107) ~[spring-boot-2.6.13.jar:2.6.13] at org.springframework.boot.sql.init.AbstractScriptDatabaseInitializer.applySchemaScripts(AbstractScriptDatabaseInitializer.java:97) ~[spring-boot-2.6.13.jar:2.6.13] at org.springframework.boot.sql.init.AbstractScriptDatabaseInitializer.initializeDatabase(AbstractScriptDatabaseInitializer.java:75) ~[spring-boot-2.6.13.jar:2.6.13] at org.springframework.boot.sql.init.AbstractScriptDatabaseInitializer.afterPropertiesSet(AbstractScriptDatabaseInitializer.java:65) ~[spring-boot-2.6.13.jar:2.6.13] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1863) ~[spring-beans-5.3.23.jar:5.3.23] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.3.23.jar:5.3.23] ... 18 common frames omitted Caused by: java.lang.IllegalArgumentException: 'script' must not be null or empty at org.springframework.util.Assert.hasText(Assert.java:289) ~[spring-core-5.3.23.jar:5.3.23] at org.springframework.jdbc.datasource.init.ScriptUtils.splitSqlScript(ScriptUtils.java:636) ~[spring-jdbc-5.3.23.jar:5.3.23] at org.springframework.jdbc.datasource.init.ScriptUtils.executeSqlScript(ScriptUtils.java:252) ~[spring-jdbc-5.3.23.jar:5.3.23] ... 28 common frames omitted 进程已结束,退出代码为 1 解释是什么意思并给出解决方法
<think>我们正在处理Spring Boot启动失败的问题,错误信息指出在初始化数据库时找不到`schema.sql`脚本。根据引用内容,Spring Boot 2.6.x版本中数据库初始化的配置方式有所变化。下面将详细解释错误原因并提供解决方法。
### 错误原因分析
1. **配置变更**:在Spring Boot 2.6.x版本中,`spring.datasource.schema`和`spring.datasource.data`属性已被弃用[^1]。新的配置方式使用`spring.sql.init`属性。
2. **默认行为**:Spring Boot默认会在启动时从`classpath`根目录查找`schema.sql`和`data.sql`文件来初始化数据库。但错误信息显示没有找到`schema.sql`文件。
3. **非嵌入式数据库**:如果使用的是非嵌入式数据库(如MySQL),默认情况下Spring Boot不会自动执行SQL初始化脚本,除非显式配置[^2]。
### 解决方法
#### 步骤1:确认SQL文件位置
确保你的SQL文件(如`schema.sql`)位于`src/main/resources`目录下。如果是多模块项目,请确保文件在正确模块的资源目录中。
#### 步骤2:更新配置文件
在`application.properties`或`application.yml`中配置SQL初始化属性:
**application.properties配置示例:**
```properties
# 启用SQL初始化
spring.sql.init.mode=always
# 指定schema脚本位置(可选,默认是schema.sql)
spring.sql.init.schema-locations=classpath:schema.sql
# 指定数据脚本位置(可选,默认是data.sql)
spring.sql.init.data-locations=classpath:data.sql
```
**application.yml配置示例:**
```yaml
spring:
sql:
init:
mode: always
schema-locations: classpath:schema.sql
data-locations: classpath:data.sql
```
#### 步骤3:针对非嵌入式数据库
如果使用MySQL、PostgreSQL等非嵌入式数据库,必须显式设置`spring.sql.init.mode=always`才能执行初始化脚本[^2]。
#### 步骤4:验证文件内容
确保`schema.sql`文件不为空且包含有效的SQL语句。例如:
```sql
CREATE TABLE IF NOT EXISTS users (
id INT AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(50) NOT NULL,
email VARCHAR(50) UNIQUE NOT NULL
);
```
#### 步骤5:清理与重建
如果之前构建过项目,请清理并重新构建:
- Maven项目:执行`mvn clean package`后再运行
- IDE中:使用`Build > Rebuild Project`功能
### 补充说明
- **多脚本支持**:可以指定多个脚本,用逗号分隔:
```yaml
spring.sql.init.schema-locations: classpath:db/schema1.sql,classpath:db/schema2.sql
```
- **平台特定脚本**:Spring Boot支持根据数据库平台自动选择脚本,例如`schema-mysql.sql`,当检测到MySQL数据库时会自动使用该脚本[^3]。
### 验证是否成功
启动应用时,观察日志中是否出现类似以下信息:
```
Initializing database with script from [file:.../schema.sql]
Executing SQL script from class path resource [schema.sql]
```
### 常见问题排查
1. **文件位置错误**:确认`schema.sql`位于`src/main/resources`目录,构建后会在`target/classes`下出现。
2. **配置未生效**:检查是否在正确的profile配置文件中设置了属性。
3. **版本兼容性**:确保所有Spring Boot依赖版本一致(当前为2.6.13)。
通过以上步骤,应该能解决数据库初始化失败的问题。如果问题仍然存在,请检查数据库连接配置是否正确,以及数据库用户是否有执行DDL语句的权限。
§§相关问题§§
1. 如何在Spring Boot中配置多数据源并分别初始化SQL脚本?
2. Spring Boot 2.6.x中数据库初始化配置与旧版本有何区别?
3. 如何为不同的数据库平台(如MySQL、PostgreSQL)提供不同的初始化脚本?</think>### Spring Boot启动失败:`'dataSourceScriptDatabaseInitializer'`初始化失败解决方案
#### 问题原因分析
1. **配置变更**:Spring Boot 2.6.x版本弃用了旧的`spring.datasource.schema`配置方式[^1]
2. **文件位置错误**:应用在classpath根目录(`src/main/resources/`)找不到`schema.sql`文件
3. **初始化模式未启用**:对于非嵌入式数据库(如MySQL),需要显式启用SQL初始化
4. **脚本路径不匹配**:实际SQL文件位置与配置路径不一致
#### 解决方法
##### 1. 更新配置文件(关键步骤)
在`application.yml`中使用新的配置语法:
```yaml
spring:
sql:
init:
mode: always # 强制启用SQL初始化
schema-locations: classpath:db/schema.sql # 自定义路径
data-locations: classpath:db/data.sql # 可选数据脚本
```
##### 2. 验证文件位置
确保SQL文件在正确位置:
```
src/main/resources/
├── application.yml
└── db/
├── schema.sql # 表结构脚本
└── data.sql # 初始数据脚本(可选)
```
##### 3. 检查SQL文件内容
确认`schema.sql`不为空且语法正确(示例):
```sql
-- schema.sql
CREATE TABLE IF NOT EXISTS users (
id INT AUTO_INCREMENT PRIMARY KEY,
username VARCHAR(50) NOT NULL,
email VARCHAR(100) UNIQUE
);
```
##### 4. 清理并重建项目
```bash
mvn clean package # Maven项目
# 或
./gradlew clean build # Gradle项目
```
##### 5. 验证配置生效
启动时观察日志,成功时会显示:
```
Initializing database with script from [file:.../db/schema.sql]
Executed SQL script from class path resource [db/schema.sql]
```
#### 不同场景处理方案
| 场景 | 配置方案 |
|------|----------|
| **嵌入式数据库** (H2) | 无需`mode: always`,自动执行 |
| **外部数据库** (MySQL) | 必须设置`mode: always` |
| **多环境配置** | 使用`spring.profiles.active`指定环境专属脚本 |
| **平台特定脚本** | 命名如`schema-mysql.sql`自动匹配 |
#### 完整配置示例
```yaml
# application.yml
spring:
profiles:
active: dev # 环境配置
sql:
init:
mode: always
schema-locations:
- classpath:db/${spring.profiles.active}/schema.sql
data-locations:
- classpath:db/${spring.profiles.active}/data.sql
datasource:
url: jdbc:mysql://localhost:3306/mydb
username: root
password: securePass123
```
#### 故障排查步骤
1. **检查文件是否存在**:
```bash
# 查看构建后的文件位置
ls target/classes/db/schema.sql
```
2. **启用详细日志**:
```yaml
logging:
level:
org.springframework.jdbc.datasource.init: DEBUG
```
3. **手动测试脚本执行**:
```java
@SpringBootTest
class SqlInitTest {
@Autowired DataSource dataSource;
@Test
void testSchemaLoad() throws SQLException {
try (Connection conn = dataSource.getConnection();
Statement stmt = conn.createStatement()) {
stmt.execute("SELECT * FROM users"); // 验证表是否存在
}
}
}
```
> **重要提示**:Spring Boot 2.5+版本必须使用`spring.sql.init`替代弃用的`spring.datasource.schema`配置[^1][^2]
运行后报错:"C:\Program Files\Java\jdk-11\bin\java.exe" -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-Dmanagement.endpoints.jmx.exposure.include=*" "-javaagent:D:\IntelliJ IDEA 2023.2.5\lib\idea_rt.jar=7344:D:\IntelliJ IDEA 2023.2.5\bin" -Dfile.encoding=UTF-8 -classpath 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ration-redis-5.5.14.jar;D:\IDEA\maven\maven_repository\io\lettuce\lettuce-core\6.2.0.RELEASE\lettuce-core-6.2.0.RELEASE.jar;D:\IDEA\maven\maven_repository\io\netty\netty-common\4.1.79.Final\netty-common-4.1.79.Final.jar;D:\IDEA\maven\maven_repository\io\netty\netty-handler\4.1.79.Final\netty-handler-4.1.79.Final.jar;D:\IDEA\maven\maven_repository\io\netty\netty-resolver\4.1.79.Final\netty-resolver-4.1.79.Final.jar;D:\IDEA\maven\maven_repository\io\netty\netty-buffer\4.1.79.Final\netty-buffer-4.1.79.Final.jar;D:\IDEA\maven\maven_repository\io\netty\netty-transport-native-unix-common\4.1.79.Final\netty-transport-native-unix-common-4.1.79.Final.jar;D:\IDEA\maven\maven_repository\io\netty\netty-codec\4.1.79.Final\netty-codec-4.1.79.Final.jar;D:\IDEA\maven\maven_repository\io\netty\netty-transport\4.1.79.Final\netty-transport-4.1.79.Final.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-logging\6.6.14\cas-server-core-logging-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-api-cookie\6.6.14\cas-server-core-api-cookie-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-logging-api\6.6.14\cas-server-core-logging-api-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-cookie-api\6.6.14\cas-server-core-cookie-api-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-web-api\6.6.14\cas-server-core-web-api-6.6.14.jar;D:\IDEA\maven\maven_repository\org\springframework\boot\spring-boot-starter-log4j2\2.7.3\spring-boot-starter-log4j2-2.7.3.jar;D:\IDEA\maven\maven_repository\org\apache\logging\log4j\log4j-jul\2.17.2\log4j-jul-2.17.2.jar;D:\IDEA\maven\maven_repository\org\apache\logging\log4j\log4j-api\2.18.0\log4j-api-2.18.0.jar;D:\IDEA\maven\maven_repository\org\apache\logging\log4j\log4j-core\2.18.0\log4j-core-2.18.0.jar;D:\IDEA\maven\maven_repository\org\apache\logging\log4j\log4j-jcl\2.18.0\log4j-jcl-2.18.0.jar;D:\IDEA\maven\maven_repository\org\apache\logging\log4j\log4j-web\2.18.0\log4j-web-2.18.0.jar;D:\IDEA\maven\maven_repository\org\apache\logging\log4j\log4j-slf4j-impl\2.18.0\log4j-slf4j-impl-2.18.0.jar;D:\IDEA\maven\maven_repository\org\apache\logging\log4j\log4j-layout-template-json\2.18.0\log4j-layout-template-json-2.18.0.jar;D:\IDEA\maven\maven_repository\com\lmax\disruptor\3.4.4\disruptor-3.4.4.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-tickets-api\6.6.14\cas-server-core-tickets-api-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-api-logout\6.6.14\cas-server-core-api-logout-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-services-authentication\6.6.14\cas-server-core-services-authentication-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-services\6.6.14\cas-server-core-services-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-api-audit\6.6.14\cas-server-core-api-audit-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-services-api\6.6.14\cas-server-core-services-api-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-services-registry\6.6.14\cas-server-core-services-registry-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-authentication-attributes\6.6.14\cas-server-core-authentication-attributes-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-events-api\6.6.14\cas-server-core-events-api-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-notifications\6.6.14\cas-server-core-notifications-6.6.14.jar;D:\IDEA\maven\maven_repository\org\springframework\boot\spring-boot-starter-mail\2.7.3\spring-boot-starter-mail-2.7.3.jar;D:\IDEA\maven\maven_repository\com\sun\mail\jakarta.mail\1.6.7\jakarta.mail-1.6.7.jar;D:\IDEA\maven\maven_repository\com\sun\activation\jakarta.activation\1.2.1\jakarta.activation-1.2.1.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-support-redis-core\6.6.14\cas-server-support-redis-core-6.6.14.jar;D:\IDEA\maven\maven_repository\com\mysql\mysql-connector-j\8.0.33\mysql-connector-j-8.0.33.jar;D:\IDEA\maven\maven_repository\com\google\protobuf\protobuf-java\3.21.9\protobuf-java-3.21.9.jar;D:\IDEA\maven\maven_repository\org\springframework\boot\spring-boot-starter-data-redis\2.7.18\spring-boot-starter-data-redis-2.7.18.jar;D:\IDEA\maven\maven_repository\org\springframework\boot\spring-boot-starter\2.7.18\spring-boot-starter-2.7.18.jar;D:\IDEA\maven\maven_repository\org\springframework\boot\spring-boot-starter-logging\2.7.18\spring-boot-starter-logging-2.7.18.jar;D:\IDEA\maven\maven_repository\ch\qos\logback\logback-classic\1.2.12\logback-classic-1.2.12.jar;D:\IDEA\maven\maven_repository\ch\qos\logback\logback-core\1.2.12\logback-core-1.2.12.jar;D:\IDEA\maven\maven_repository\org\apache\logging\log4j\log4j-to-slf4j\2.17.2\log4j-to-slf4j-2.17.2.jar;D:\IDEA\maven\maven_repository\org\springframework\boot\spring-boot-starter-tomcat\2.7.18\spring-boot-starter-tomcat-2.7.18.jar;D:\IDEA\maven\maven_repository\jakarta\annotation\jakarta.annotation-api\1.3.5\jakarta.annotation-api-1.3.5.jar;D:\IDEA\maven\maven_repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.83\tomcat-embed-core-9.0.83.jar;D:\IDEA\maven\maven_repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.83\tomcat-embed-el-9.0.83.jar;D:\IDEA\maven\maven_repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.83\tomcat-embed-websocket-9.0.83.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-configuration\6.6.14\cas-server-core-configuration-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-api-configuration\6.6.14\cas-server-core-api-configuration-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-api-authentication\6.6.14\cas-server-core-api-authentication-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-api-protocol\6.6.14\cas-server-core-api-protocol-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-api-monitor\6.6.14\cas-server-core-api-monitor-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-api-webflow\6.6.14\cas-server-core-api-webflow-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-api-events\6.6.14\cas-server-core-api-events-6.6.14.jar;D:\IDEA\maven\maven_repository\org\apereo\cas\cas-server-core-api-validation\6.6.14\cas-server-core-api-validation-6.6.14.jar;D:\IDEA\maven\maven_repository\org\jasypt\jasypt\1.9.3\jasypt-1.9.3.jar;D:\IDEA\maven\maven_repository\org\bouncycastle\bcpkix-jdk15on\1.70\bcpkix-jdk15on-1.70.jar;D:\IDEA\maven\maven_repository\org\bouncycastle\bcutil-jdk15on\1.70\bcutil-jdk15on-1.70.jar;D:\IDEA\maven\maven_repository\org\cryptacular\cryptacular\1.2.5\cryptacular-1.2.5.jar;D:\IDEA\maven\maven_repository\org\bouncycastle\bcprov-jdk18on\1.71\bcprov-jdk18on-1.71.jar;D:\IDEA\maven\maven_repository\org\bouncycastle\bcprov-jdk15on\1.70\bcprov-jdk15on-1.70.jar;D:\IDEA\maven\maven_repository\org\springframework\security\spring-security-crypto\5.7.8\spring-security-crypto-5.7.8.jar;D:\IDEA\maven\maven_repository\jakarta\xml\bind\jakarta.xml.bind-api\2.3.3\jakarta.xml.bind-api-2.3.3.jar;D:\IDEA\maven\maven_repository\jakarta\activation\jakarta.activation-api\1.2.2\jakarta.activation-api-1.2.2.jar com.example.casserver.CasServerApplication SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/D:/IDEA/maven/maven_repository/org/apache/logging/log4j/log4j-slf4j-impl/2.18.0/log4j-slf4j-impl-2.18.0.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/D:/IDEA/maven/maven_repository/ch/qos/logback/logback-classic/1.2.12/logback-classic-1.2.12.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory] Exception in thread "main" java.lang.ExceptionInInitializerError at com.example.casserver.CasServerApplication.main(CasServerApplication.java:10) Caused by: org.apache.logging.log4j.LoggingException: log4j-slf4j-impl cannot be present with log4j-to-slf4j at org.apache.logging.slf4j.Log4jLoggerFactory.validateContext(Log4jLoggerFactory.java:60) at org.apache.logging.slf4j.Log4jLoggerFactory.newLogger(Log4jLoggerFactory.java:44) at org.apache.logging.slf4j.Log4jLoggerFactory.newLogger(Log4jLoggerFactory.java:33) at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:53) at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:33) at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:363) at org.apache.commons.logging.LogAdapter$Slf4jAdapter.createLocationAwareLog(LogAdapter.java:130) at org.apache.commons.logging.LogAdapter.createLog(LogAdapter.java:91) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:67) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:59) at org.springframework.boot.SpringApplication.<clinit>(SpringApplication.java:179) ... 1 more Process finished with exit code 1
<think>我们遇到了一个SLF4J绑定冲突的问题。错误信息显示:
"SLF4J: Classpath containsmultiple SLF4J bindings."并且具体指出了两个绑定:1.org.apache.logging.log4j:log4j-slf4j-impl2.ch.qos.logback:logback-classic此外,异常信息明确指出:
"log4j-slf4j-implcannot bepresent withlog4j-to-slf4j"
但是,在错误信息中,我们并没有直接看到log4j-to-slf4j,而是看到了logback-classic。实际上,log4j-slf4j-impl是Log4j2的SLF4J绑定,而logback-classic是Logback的SLF4J绑定。两者都是SLF4J的具体实现,因此冲突。
然而,异常信息中提到的“log4j-slf4j-impl cannotbe presentwith log4j-to-slf4j”是因为在Log4j2的文档中,log4j-slf4j-impl和log4j-to-slf4j(这个桥接器用于将Log4j2的日志重定向到SLF4J)不能同时存在。但是这里并没有出现log4j-to-slf4j,而是出现了logback-classic。所以,问题本质上是两个不同的SLF4J实现在同一个类路径下。从依赖树来看,我们同时引入了:-log4j-slf4j-impl(来自cas-server-core-logging,它使用了Log4j2)- logback-classic(来自spring-boot-starter-logging,因为我们在spring-boot-starter-data-redis中传递依赖了spring-boot-starter,而它又依赖了spring-boot-starter-logging,其中默认使用Logback)因此,我们需要排除其中一个绑定。由于CAS项目通常使用Log4j2,而SpringBoot默认使用Logback,所以我们需要统一日志框架。根据CAS的文档,它使用的是Log4j2,因此我们应该排除SpringBoot中的Logback依赖。解决方案:1.排除spring-boot-starter-logging(它会引入logback-classic)2.确保使用Log4j2作为日志实现在Maven中,我们可以这样排除:
```xml<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-redis</artifactId><exclusions><exclusion><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-logging</artifactId></exclusion></exclusions></dependency>
```同时,我们已经在依赖中引入了spring-boot-starter-log4j2,所以排除掉logback后,应该使用Log4j2。
另外,注意错误信息中还有一个警告:log4j-slf4j-impl和log4j-to-slf4j不能同时存在。但是我们在依赖中并没有显式引入log4j-to-slf4j,所以暂时不用处理。如果后续出现,需要排除。但是,我们注意到在依赖中有一个log4j-to-slf4j的包,它是从spring-boot-starter-logging中传递过来的(因为spring-boot-starter-logging包含了log4j-to-slf4j,用于将log4j1.x的日志重定向到SLF4J)。然而,我们使用的是log4j2,所以这个包不会影响。但是,当我们排除了spring-boot-starter-logging后,这个包也会被排除,所以不会冲突。因此,我们只需要排除spring-boot-starter-logging即可。重新运行程序,应该可以解决绑定冲突的问题。
如果还有问题,请检查是否还有其他依赖引入了logback-classic或log4j-slf4j-impl,并确保只有一个SLF4J绑定存在。注意:在SpringBoot项目中,如果要使用Log4j2,通常需要排除默认的Logback,并引入spring-boot-starter-log4j2。在CAS项目中,通常已经配置好了Log4j2,所以按照上述排除即可。现在,我们来回答用户的问题:如何解决这个异常。</think>### 问题分析
您遇到的错误是由于日志框架绑定冲突导致的:
1. **SLF4J检测到多个绑定**:类路径中同时存在 `log4j-slf4j-impl` (Log4j2 实现) 和 `logback-classic` (Logback 实现)
2. **冲突的日志框架**:
- `cas-server-core-logging` 依赖 Log4j2
- `spring-boot-starter-logging` 依赖 Logback
3. **异常直接原因**:`log4j-slf4j-impl` 与 `log4j-to-slf4j` 不兼容(后者是 Logback 的桥接器)
### 解决方案
#### 方法 1:统一使用 Log4j2(推荐)
在 Maven 中排除 Logback 并引入 Log4j2 启动器:
```xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
<exclusions>
<!-- 排除 Logback -->
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- 添加 Log4j2 支持 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
```
#### 方法 2:统一使用 Logback
排除 CAS 中的 Log4j2 依赖(需验证 CAS 兼容性):
```xml
<dependency>
<groupId>org.apereo.cas</groupId>
<artifactId>cas-server-core-logging</artifactId>
<exclusions>
<!-- 排除 Log4j2 -->
<exclusion>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
</exclusion>
</exclusions>
</dependency>
```
### 验证步骤
1. 执行 `mvn dependency:tree` 检查日志依赖
2. 确保项目中只存在**一个** SLF4J 绑定实现
3. 清理编译缓存后重启应用
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