插入段代码,下次回忆吧. 先新建一个Person类,代码如下: public class Person { private String name ; private int age; public Person(){ } public Person(String name,int age){ this.name = name ; this.age = age; } Person(String name){ this.name = name; } private Person(int age){
今天用学校里的黑马程序员通Java语法 想到了:在有参构造函数中调用无参构造函数 语法是这样的: class Person{ private int age; public Person() { System.out.println("wu can gou zao"); } public Person(int a) { age = a; System.out.println("you can gou zao"); System.out.println("a
Exception report message Illegal access to constructor, is it public? description The server encountered an internal error that prevented it from fulfilling this request. exception Illegal access to constructor, is it public? com.opensymphony.xwork2.
严重: Servlet.service() for servlet [springMVC] in context with path [/ExceptionManageSystem] threw exception [Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.Pe
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3976) at com.mysql.jdbc.MysqlIO.checkError
在安装CDH的时候报错了: root@d001:/var/cache//base# /opt/cm-/share/cmf/schema/scm_prepare_database.sh mysql cdh -hd001 -uroot -proot -pwordemotion --scm-host d001 root root --force JAVA_HOME=/soft/jdk1..0_144 Verifying that we can /etc/cloudera-scm-server [ ma
在使用eclipse连接mysql数据库时报异常: java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3609) at com.my
root cause org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.hs.model.StudentModel]: No default constructor found; nested exception is java.lang.NoSuchMethodException: com.hs.model.StudentModel.<init>() org.