dataSource
在这个类中定义,我在springSecurityConfig.java
类中使用相同的bean,但是它给了我错误:
No qualifying bean of type 'javax.sql.DataSource' available
ShoppingServletConfig.java
@Configuration
@EnableWebMvc
@EnableTransactionManagement
@ComponentScan(basePackages = "com.project.shopping")
public class ShoppingServletConfig {
@Primary
@Bean(name = "dataSource")
public DataSource dataSource() {
BasicDataSource dataSource = new BasicDataSource();
dataSource.setDriverClassName("com.mysql.jdbc.Driver");
dataSource.setUrl("jdbc:mysql://localhost:3306/shopping");
dataSource.setUsername("root");
dataSource.setPassword("root");
return dataSource;
}
}
SpringSecurityConfig.java
@Configuration
@EnableWebSecurity
public class SpringSecurityConfig extends WebSecurityConfigurerAdapter {
@Autowired
@Qualifier("dataSource")
DataSource dataSource;
@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth
.jdbcAuthentication()
.dataSource(dataSource)
.usersByUsernameQuery(
"select username,password, enabled from user where user_name=?")
.authoritiesByUsernameQuery(
"select username, role from user_roles where user_name=?");
}
控制台中的错误是这样的:
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'springSecurityConfig':
Unsatisfied dependency expressed through field 'dataSource'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'javax.sql.DataSource' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true), @org.springframework.beans.factory.annotation.Qualifier(value=dataSource)}
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'javax.sql.DataSource' available: expected at least 1 bean which qualifies as autowire candidate.
Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true), @org.springframework.beans.factory.annotation.Qualifier(value=dataSource)}
答案 0 :(得分:0)
我有时这样做,我强迫Spring对显式bean进行依赖管理。 配置界面作为匿名类返回:
@Configuration
@EnableWebSecurity
public class SpringSecurityConfig {
@Bean
public WebSecurityConfigurerAdapter securityAdapter (DataSource dataSource) {
return new WebSecurityConfigurerAdapter () {
@Override
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth.jdbcAuthentication()
.dataSource(dataSource)
.usersByUsernameQuery("select username,password, enabled from user where user_name=?")
.authoritiesByUsernameQuery("select username, role from user_roles where user_name=?");
}
}
}