废话不多说了,直接给大家贴关键代码了,具体代码如下所示:
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package com.sp.test;
import java.sql.*;
import java.util.*;
public class Text_lianxi extends Thread {
public void run() {
try {
yunxing();
Thread.sleep( 10000 );
} catch (InterruptedException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
}
//输入函数
public String[] shuru() {
System.out.println( "请按顺序依次输入考生的详细信息:\n考试等级,身份证号,准考证号,考生姓名,考试地点,考试成绩" );
Scanner sc = new Scanner(System.in);
String[] str = new String[ 6 ];
for ( int i = 0 ; i < str.length; i++) {
str[i] = sc.nextLine();
}
System.out.println( "信息输入完毕" );
sc.close();
return str;
}
//查询函数
public String chaxun() {
System.out.println( "请选择查询方式:\n a:身份证号 b:准考证号" );
Scanner sc = new Scanner(System.in);
String s = sc.nextLine().toLowerCase();
String str = "" ;
if (s.equals( "a" )) {
System.out.println( "请输入查询号码:" );
String st = sc.nextLine();
if (st.length() == 18 ) {
str = "select * from examstudent where idcard = " + st;
} else {
System.out.println( "身份证位数输入有误" );
}
} else if (s.equals( "b" )) {
System.out.println( "请输入查询号码:" );
String st = sc.nextLine();
if (st.length() == 15 ) {
str = "select * from examstudent where examcard = " + st;
} else {
System.out.println( "准考证位数输入有误" );
}
} else {
System.out.println( "你输入的查询方式有误,请重新进入程序" );
}
sc.close();
return str;
}
//删除函数
public String shanchu() {
Scanner sc = new Scanner(System.in);
System.out.println( "请输入考生的准考证号:" );
String str = sc.nextLine();
if (str.length() != 15 ) {
System.out.println( "准考证号输入有误,请重新输入" );
}
sc.close();
return str;
}
//运行
public void yunxing() {
synchronized ( "" ) {
try {
Connection conn = null ;
// 链接数据库
Class.forName( "oracle.jdbc.driver.OracleDriver" );
String strURL = "jdbc:oracle:thin:@localhost:1521:SP" ;
conn = DriverManager.getConnection(strURL, "test" , "123" );
System.out.println(Thread.currentThread().getName()+ "数据库连接成功" );
Statement st = conn.createStatement();
// 选择功能
Scanner sc = new Scanner(System.in);
System.out.println( "请选择功能:\n 1:输入信息 2:查询信息 3:删除信息" );
int num = sc.nextInt();
if (num == 1 ) {
// 输入信息
String[] str = shuru();
if (str[ 1 ].length() != 18 && str[ 2 ].length() != 15 ) {
System.out.println( "号码位数有误(身份证号18位,准考证号15位),请重新进入系统输入" );
} else {
st.execute( "insert into examstudent values(fiowid.nextval,to_number(" + str[ 0 ] + "),'" + str[ 1 ]
+ "','" + str[ 2 ] + "','" + str[ 3 ] + "','" + str[ 4 ] + "'," + "to_number(" + str[ 5 ]
+ "))" );
System.out.println( "信息录入成功" );
}
} else if (num == 2 ) {
// 查询
String str1 = chaxun();
ResultSet r = st.executeQuery(str1);
// 输出查询结果
if (r.next()) {
System.out.println( "考试等级:" + r.getString( 2 ) + "\n身份证号:" + r.getString( 3 ) + "\n准考证号:"
+ r.getString( 4 ) + "\n考生姓名:" + r.getString( 5 ) + "\n考试地区:" + r.getString( 6 ) + "\n考试成绩:"
+ r.getString( 7 ));
} else {
System.out.println( "查无此人,请重新进入系统" );
}
r.close();
} else if (num == 3 ) {
// 删除
String str2 = shanchu();
int a = st.executeUpdate( "delete examstudent where examcard = " + str2);
if (a > 0 ) {
System.out.println( "删除成功" );
} else {
System.out.println( "查无此人,请重新进入程序" );
}
} else {
System.out.println( "抱歉,暂未开放此功能" );
}
sc.close();
st.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
public static void main(String[] args) {
Text_lianxi lx1 = new Text_lianxi();
// Text_lianxi lx2 = new Text_lianxi();
// Text_lianxi lx3 = new Text_lianxi();
lx1.setName( "窗口1" );
lx1.start();
// lx2.setName("窗口2");
// lx2.start();
// lx3.setName("窗口3");
// lx3.start();
}
}
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开始运行:
信息输入: 身份证号查询:
准考证号查询: 信息删除:
输入错误信息:
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