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Java code:


public class Dept implements java.io.Serializable {

// Fields

private Long deptno;
private String dname;
private String loc;
private Set emps = new HashSet(0);

// Constructors

/** default constructor */
private Dept() {
}

/** full constructor */
public Dept(String dname, String loc, Set emps) {
this.dname = dname;
this.loc = loc;
this.emps = emps;
}

//get set·½·¨È¥µô¡£

}

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Java code:

Class<Dept> forName = (Class<Dept>) Class.forName("com.session.bean.Dept");
Constructor<Dept> con = forName.getConstructor(null);
con.setAccessible(true);
Dept dept = (Dept) con.newInstance();


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java.lang.NoSuchMethodException: com.session.bean.Dept. <init>()
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.getConstructor(Unknown Source)
at com.session.dao.LoginDAO.main(LoginDAO.java:187)

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con.newInstance();
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forName.getConstructor£¨£©ÕâÑùµ÷ÓÃĬÈϹ¹ÔìÆ÷£¬Î޲εÄ

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forName.getCon