Error querying database. Cause: java.lang.NullPointerException
spring.datasource.url=jdbc:mysql://localhost:3306/springboot
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
logging.level.cpm.lmy = debug
spring.datasource.hikari.idle-timeout=60000
spring.datasource.hikari.minimum-idle=10
spring.datasource.hikari.maximum-pool-size=30
server.port=8086
mybatis.type-aliases-package=cpm.lmy.pojo
mybatis.mapper-locations=classpath*:mappers/*.xml
import org.springframework.boot.context.properties.ConfigurationProperties;
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//错误在这不应该是jdbc而是配置文件中spring.datasource
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@ConfigurationProperties(prefix = "jdbc")
public class JdbcProperties {
private String url;
private String driverClassName;
private String username;
private String password;
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
public String getDriverClassName() {
return driverClassName;
}
public void setDriverClassName(String driverClassName) {
this.driverClassName = driverClassName;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}