随便写了一个DAO

Posted 2020-08-11 Hello.World!

  1 package com.java;
  2 
  3 public class ExamStudent {
  4     /**
  5      * 流水号
  6      */
  7     private int flowId;
  8 
  9     /**
 10      * 四级、六级
 11      */
 12     private int type;
 13 
 14     /**
 15      * 身份证号码
 16      */
 17     private String idCard;
 18 
 19     /**
 20      * 准考证号码
 21      */
 22     private String examCard;
 23 
 24     /**
 25      * 学生姓名
 26      */
 27     private String studentName;
 28 
 29     /**
 30      * 区域
 31      */
 32     private String location;
 33 
 34     /**
 35      * 成绩
 36      */
 37     private int grade;
 38 
 39     public int getFlowId() {
 40         return flowId;
 41     }
 42 
 43     public void setFlowId(int flowId) {
 44         this.flowId = flowId;
 45     }
 46 
 47     public int getType() {
 48         return type;
 49     }
 50 
 51     public void setType(int type) {
 52         this.type = type;
 53     }
 54 
 55     public String getIdCard() {
 56         return idCard;
 57     }
 58 
 59     public void setIdCard(String idCard) {
 60         this.idCard = idCard;
 61     }
 62 
 63     public String getExamCard() {
 64         return examCard;
 65     }
 66 
 67     public void setExamCard(String examCard) {
 68         this.examCard = examCard;
 69     }
 70 
 71     public String getStudentName() {
 72         return studentName;
 73     }
 74 
 75     public void setStudentName(String studentName) {
 76         this.studentName = studentName;
 77     }
 78 
 79     public String getLocation() {
 80         return location;
 81     }
 82 
 83     public void setLocation(String location) {
 84         this.location = location;
 85     }
 86 
 87     public int getGrade() {
 88         return grade;
 89     }
 90 
 91     public void setGrade(int grade) {
 92         this.grade = grade;
 93     }
 94 
 95     @Override
 96     public String toString() {
 97         return "ExamStudent [flowId=" + flowId + ", type=" + type + ", idCard=" + idCard + ", examCard=" + examCard
 98                 + ", studentName=" + studentName + ", location=" + location + ", grade=" + grade + "]";
 99     }
100     
101 }

 1 package com.java;
 2 
 3 import org.junit.Test;
 4 
 5 public class DaoTest {
 6     Dao dao = new Dao();
 7     @Test
 8     public void testUpdate() {
 9         String sql = "INSERT INTO customers (name,email,birth)"
10                 + "VALUES (?,?,?)";
11         dao.update(sql, "小明","[email protected]",
12                 new java.sql.Date(new java.util.Date().getTime()));
13     }
14 
15     @Test
16     public void testGetOne() {
17         String sql = "SELECT flow_id flowId,type type,id_card idCard"
18                 + ",exam_card examCard,student_name studentName,location location,"
19                 + "grade grade FROM exam_student";
20         ExamStudent student = new ExamStudent();
21         dao.getOne(student.getClass(), sql);
22         
23         System.out.println(student);
24     }
25 
26     @Test
27     public void testGetForList() {
28     }
29 
30     @Test
31     public void testGetForValue() {
32     }
33 
34 }

创建表的ddl

/*
SQLyog Ultimate v10.42 
mysql - 5.5.28 : Database - dic
*********************************************************************
*/


/*!40101 SET NAMES utf8 */;

/*!40101 SET SQL_MODE=‘‘*/;

/*!40014 SET @[email protected]@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @[email protected]@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @[email protected]@SQL_MODE, SQL_MODE=‘NO_AUTO_VALUE_ON_ZERO‘ */;
/*!40111 SET @[email protected]@SQL_NOTES, SQL_NOTES=0 */;
CREATE DATABASE /*!32312 IF NOT EXISTS*/`dic` /*!40100 DEFAULT CHARACTER SET utf8 */;

USE `dic`;

/*Table structure for table `customers` */

DROP TABLE IF EXISTS `customers`;

CREATE TABLE `customers` (
  `ID` int(6) NOT NULL AUTO_INCREMENT,
  `NAME` varchar(25) DEFAULT NULL,
  `EMAIL` varchar(25) DEFAULT NULL,
  `BIRTH` date DEFAULT NULL,
  PRIMARY KEY (`ID`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;

/*Data for the table `customers` */

insert  into `customers`(`ID`,`NAME`,`EMAIL`,`BIRTH`) values (2,‘李小龙‘,‘[email protected]‘,‘1940-11-27‘),(3,‘成龙‘,‘[email protected]‘,‘1978-04-25‘),(4,‘小明‘,‘[email protected]‘,‘2016-09-28‘);

/*Table structure for table `exam_student` */

DROP TABLE IF EXISTS `exam_student`;

CREATE TABLE `exam_student` (
  `FLOW_ID` int(20) NOT NULL AUTO_INCREMENT COMMENT ‘流水号‘,
  `TYPE` int(6) DEFAULT NULL COMMENT ‘四级/六级‘,
  `ID_CARD` varchar(18) DEFAULT NULL COMMENT ‘身份证号码‘,
  `EXAM_CARD` varchar(15) DEFAULT NULL COMMENT ‘准考证号码‘,
  `STUDENT_NAME` varchar(20) DEFAULT NULL COMMENT ‘学生姓名‘,
  `LOCATION` varchar(20) DEFAULT NULL COMMENT ‘区域‘,
  `GRADE` int(6) DEFAULT NULL COMMENT ‘成绩‘,
  KEY `FLOW_ID` (`FLOW_ID`)
) ENGINE=InnoDB AUTO_INCREMENT=12 DEFAULT CHARSET=utf8;

/*Data for the table `exam_student` */

insert  into `exam_student`(`FLOW_ID`,`TYPE`,`ID_CARD`,`EXAM_CARD`,`STUDENT_NAME`,`LOCATION`,`GRADE`) values (1,4,‘412824195263214584‘,‘200523164754000‘,‘张峰‘,‘郑州‘,85),(2,4,‘222224195263214584‘,‘200523164754001‘,‘孙朋‘,‘大连‘,56),(3,6,‘342824195263214584‘,‘200523164754002‘,‘刘明‘,‘沈阳‘,72),(4,6,‘100824195263214584‘,‘200523164754003‘,‘赵虎‘,‘哈尔滨‘,95),(5,4,‘454524195263214584‘,‘200523164754004‘,‘杨丽‘,‘北京‘,64),(6,4,‘854524195263214584‘,‘200523164754005‘,‘王小红‘,‘太原‘,60),(7,4,‘5‘,‘6‘,‘7‘,‘8‘,9),(8,23,‘24‘,‘25‘,‘26‘,‘27‘,28),(9,77,‘88‘,‘99‘,‘1010‘,‘1111‘,1212),(10,1,‘2‘,‘3‘,‘4‘,‘5‘,6),(11,23,‘45‘,‘56‘,‘67‘,‘78‘,89);

/*!40101 SET [email protected]_SQL_MODE */;
/*!40014 SET [email protected]_FOREIGN_KEY_CHECKS */;
/*!40014 SET [email protected]_UNIQUE_CHECKS */;
/*!40111 SET [email protected]_SQL_NOTES */;