Question

我正在尝试连接到SQL Server，并将数据插入数据库中。我有一个班级人员，主要和DataBaseInfo。我已经为所有错误下载了maven库，但没有成功。我不知道为什么

<?xml version='1.0' encoding='UTF-8'?>
<beans xmlns = "http://www.springframework.org/schema/beans"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation = "http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
        <bean id='data' class='com.microsoft.sqlserver.jdbc.SQLServerDriver'>  
        <property name='driverClassName' value ='java.sql.DriverManager'></property>
        <property name='dataSource' value ='jdbc:sqlserver://10.222.115.11:1433;databaseName=Test;integratedSecurity=true'></property>
        <property name='username' value='HmgDbUser'></property>
        <property name='password' value='123456'></property>
        </bean>
        <bean id='template' class='org.springframework.jdbc.core.JdbcTemplate'>  
        <property name='dataSource' ref ='data'></property>
        </bean>
        <bean id='dbi' class='test1.DataBaseInfo'>  
        <property name='template' ref ='template'></property>
        </bean>
    </beans>

我的pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.sample</groupId>
    <artifactId>test1</artifactId>
    <name> Spring boots test</name>
    <version>0.0.2-SNAPSHOT</version>
    <dependencies>
    <!-- https://mvnrepository.com/artifact/com.microsoft.sqlserver/sqljdbc4 -->
<dependency>
    <groupId>com.microsoft.sqlserver</groupId>
    <artifactId>sqljdbc4</artifactId>
    <version>4.0</version>
    <scope>test</scope>
</dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
            <version>2.0.5.RELEASE</version>
        </dependency>
        <dependency>
    <groupId>com.microsoft.sqlserver</groupId>
    <artifactId>mssqljdbc6</artifactId>
    <version>6.2.1</version>
</dependency>
<dependency>
    <groupId>commons-logging</groupId>
    <artifactId>commons-logging</artifactId>
    <version>1.1.1</version>
</dependency>
    </dependencies>
    <properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <java.version>1.8</java.version>
    </properties>

</project>

我的主要人

package test1;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Main {
    //jdbc:sqlserver:10.200.105.11;databaseName=test;integratedSecurity=true
    public static void main(String[] args) {
        ApplicationContext conx = new ClassPathXmlApplicationContext("bean.xml");
        DataBaseInfo di = (DataBaseInfo)conx.getBean("dbi");
        int ins=di.insertPerson(new Person("abdulaziz","riyadh","Saudi","Developer"));
        System.out.println(ins);
    }
}

运行它时，会发生此错误：

Oct 28, 2018 4:35:01 PM org.springframework.context.support.ClassPathXmlApplicationContext refresh
WARNING: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [com.microsoft.sqlserver.jdbc.SQLServerDriver] for bean with name 'data' defined in class path resource [bean.xml]: problem with class file or dependent class; nested exception is java.lang.UnsupportedClassVersionError: com/microsoft/sqlserver/jdbc/SQLServerDriver has been compiled by a more recent version of the Java Runtime (class file version 54.0), this version of the Java Runtime only recognizes class file versions up to 52.0
Exception in thread "main" org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [com.microsoft.sqlserver.jdbc.SQLServerDriver] for bean with name 'data' defined in class path resource [bean.xml]: problem with class file or dependent class; nested exception is java.lang.UnsupportedClassVersionError: com/microsoft/sqlserver/jdbc/SQLServerDriver has been compiled by a more recent version of the Java Runtime (class file version 54.0), this version of the Java Runtime only recognizes class file versions up to 52.0
    at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1385)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:663)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:630)
    at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1491)
    at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1014)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:826)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:863)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:144)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:85)
    at test1.Main.main(Main.java:8)
Caused by: java.lang.UnsupportedClassVersionError: com/microsoft/sqlserver/jdbc/SQLServerDriver has been compiled by a more recent version of the Java Runtime (class file version 54.0), this version of the Java Runtime only recognizes class file versions up to 52.0
    at java.lang.ClassLoader.findBootstrapClass(Native Method)
    at java.lang.ClassLoader.findBootstrapClassOrNull(ClassLoader.java:1015)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:413)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:411)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:348)
    at org.springframework.util.ClassUtils.forName(ClassUtils.java:275)
    at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:437)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doResolveBeanClass(AbstractBeanFactory.java:1430)
    at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1374)
    ... 10 more

我的Java版本

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Answer 1

您有两个选择。

在编译Maven模块时使用JDK版本10。自从您提供的例外以来，版本10表示了这一点。类文件格式54对应于Java10。请参见here。
使用为JDK版本8编译的JDBC驱动程序版本或与您要使用的JDK版本匹配的版本。但是也要检查数据库的文档，以确保选择正确的驱动程序实现。例如：
```
<dependency>
    <groupId>com.microsoft.sqlserver</groupId>
    <artifactId>mssql-jdbc</artifactId>
    <version>7.0.0.jre8</version>
</dependency>
```

Answer 2

尝试从Maven使用低版本的jdbc驱动程序

我在Java项目上找不到SqlServerDriver

2 个答案: