Question

Spring应用程序我试过setter注入它运行良好。当我编写构造函数注入时，它失败了。

public class Sample {

    JdbcTemplate jdbcTemplate;

    public Sample(){

    }

    public Sample(JdbcTemplate jdbcTemplate){
        System.out.println("invoked");
        this.jdbcTemplate=jdbcTemplate;
    }
}

上下文文件

<bean id="derbyDataSource"
    class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName" value="${db.driver}" />
    <property name="url"
        value="jdbc:derby:#{systemProperties['user.appdata']}/${db.name};create=true" />
    <property name="username" value="${db.user}" />
    <property name="password" value="${db.password}" />
</bean>



<!-- JDBC Template Bean -->
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
     <property name="dataSource" ref="derbyDataSource" />
</bean>



<bean id="sample" class="com.exbury.Sample">
    <constructor-arg ref="jdbcTemplate"></constructor-arg>
</bean>

加载上下文

ApplicationContext context = new ClassPathXmlApplicationContext("derbyDatabaseConfiguration.xml");

错误

Exception in thread "main" java.lang.IncompatibleClassChangeError: class org.springframework.core.LocalVariableTableParameterNameDiscoverer$ParameterNameDiscoveringVisitor has interface org.springframework.asm.ClassVisitor as super class

Answer 1

此Source解决了类似的错误。我不确定你的，但你可以尝试添加这个排除吗？

<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-web</artifactId>
    <version>your version</version>
    <exclusions>
        <exclusion>
            <groupId>org.springframework</groupId>
            <artifactId>spring-asm</artifactId>
        </exclusion>
    </exclusions>
</dependency>

Spring构造函数注入会引发错误

1 个答案: