java 获取数据源失败

java 获取数据源失败

java

java8

java开发

【⭐】Java—Spring-—数据库操作—使用内置连接池，报读取不到驱动错误。Could not load JDBC driver class。

项目功能：

连接MySql数据库，向数据库插入一条数据

项目结构：

DEBUG信息：

DEBUG [main] - Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@67b92f0a: defining beans

[org.springframework.context.support.PropertySourcesPlaceholderConfigurer#0,studentService,studentDao,dataSource]; root of factory hierarchy

juint信息：

org.springframework.beans.factory.BeanCreationException:

Error creating bean with name 'studentService' defined in class path resource [applicationContext.xml]:

Cannot resolve reference to bean 'studentDao' while setting bean property 'studentDao';

nested exception is org.springframework.beans.factory.BeanCreationException:

Error creating bean with name 'studentDao' defined in class path resource [applicationContext.xml]:

Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource';

nested exception is org.springframework.beans.factory.BeanCreationException:

Error creating bean with name 'dataSource' defined in class path resource [applicationContext.xml]:

Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException;

nested PropertyAccessExceptions (1) are:

PropertyAccessException 1: org.springframework.beans.MethodInvocationException:

Property 'driverClassName' threw exception; nested exception is java.lang.IllegalStateException: Could not load JDBC driver class [${jdbc.driverClass]

分析：

1.配置文件出错。

(1)检测jdbc.properties————————————没有错误

(2)检测applicationContext.xml————————没有错误

2.JAR包错误

(1)重新导包————————————————解决错误，成功连接数据库，插入数据。

问题原因：

产生错误时使用的Jar包：                                          重新导入的Jar包：

缺少mysql-connector-java-5.1.13-bin.jar包！！

所以报的是无法找到驱动。

内容来源于网络，如有侵权请联系客服删除

java 获取数据源失败

java

java8

java开发

【⭐】Java—Spring-—数据库操作—使用内置连接池，报读取不到驱动错误。Could not load JDBC driver class。

项目功能：

连接MySql数据库，向数据库插入一条数据

项目结构：

DEBUG信息：

DEBUG [main] - Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@67b92f0a: defining beans

[org.springframework.context.support.PropertySourcesPlaceholderConfigurer#0,studentService,studentDao,dataSource]; root of factory hierarchy

juint信息：

org.springframework.beans.factory.BeanCreationException:

Error creating bean with name 'studentService' defined in class path resource [applicationContext.xml]:

Cannot resolve reference to bean 'studentDao' while setting bean property 'studentDao';

nested exception is org.springframework.beans.factory.BeanCreationException:

Error creating bean with name 'studentDao' defined in class path resource [applicationContext.xml]:

Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource';

nested exception is org.springframework.beans.factory.BeanCreationException:

Error creating bean with name 'dataSource' defined in class path resource [applicationContext.xml]:

Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException;

nested PropertyAccessExceptions (1) are:

PropertyAccessException 1: org.springframework.beans.MethodInvocationException:

Property 'driverClassName' threw exception; nested exception is java.lang.IllegalStateException: Could not load JDBC driver class [${jdbc.driverClass]

分析：

1.配置文件出错。

(1)检测jdbc.properties————————————没有错误

(2)检测applicationContext.xml————————没有错误

2.JAR包错误

(1)重新导包————————————————解决错误，成功连接数据库，插入数据。

问题原因：

产生错误时使用的Jar包：                                          重新导入的Jar包：

缺少mysql-connector-java-5.1.13-bin.jar包！！

所以报的是无法找到驱动。

内容来源于网络，如有侵权请联系客服删除