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dto:
package com;
public class TeacherDto {
private String userName;
private String password;
private int age;
public TeacherDto(String userName, String password, int age) {
super();
this.userName = userName;
this.password = password;
this.age = age;
}
public TeacherDto() {
super();
// TODO Auto-generated constructor stub
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
}
_______________________________________________________
DAO:
public Object[][] queryAllUser() {
// ResultSet rs;
try {
// »ñµÃConnectionÁ¬½Ó¶ÔÏó
conn = DBConnection.getConnection();
// ´´½¨prepareStatement¶ÔÏó
ps = conn.prepareStatement("select count(*) from user_info ");
// Ö´ÐвéѯÓï¾ä
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