pt1:首先安装oracle连接驱动
下载地址：https://pan.baidu.com/s/1jW_ofgU4eJmAn7Y2J5B46A 密码：epkz
1.将ojdbc6.jar导入项目中
先创建一个项目，然后在鼠标移到项目上右键-->new-->folder;folder name:lib;这样就在项目中创建了一个文件夹lib;然后将ojdbc6.jar包导入该文件夹中
2.Reference Library包右键-->build path-->add extend 导入jar包apply and save;
package Db;
import java.sql.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.HashMap;
import java.util.Map;
import org.openqa.selenium.remote.server.handler.DeleteCookie;
import bsh.This;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
public class OrcTest {
String url;
String user;
String pwd;
String sql;
Connection connect;// 创建一个数据库连接
PreparedStatement pre ;// 创建预编译语句对象，一般都是用这个而不用Statement
ResultSet result;
public OrcTest(String url,String user,String pwd){
this.url=url;
this.user=user;
this.pwd=pwd;
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
this.connect=DriverManager.getConnection(this.url, this.user, this.pwd);
}catch (Exception e) {
System.out.println("连接数据驱动失败");
e.printStackTrace();
}
}
public void CloseDb(){
try {
if(this.pre !=null) {
this.pre.close();
System.out.println("关闭事物");
}
if(this.result !=null) {
this.result.close();
System.out.println("关闭结果对象");
}
if(this.connect !=null) {
this.connect.close();
System.out.println("关闭连接");
}
}catch (Exception e) {
e.printStackTrace();
}
}
// exe_select
public ArrayList<Object> exeselect(String sql) {
ArrayList<Object> list =new ArrayList<Object>();
try {
this.pre=this.connect.prepareStatement(sql);
this.result = this.pre.executeQuery();
ResultSetMetaData rsmd=null;
int count=0;
rsmd = this.result.getMetaData();
count=rsmd.getColumnCount();
while(this.result.next()) {
Map<String, Object> map = new HashMap<String, Object>();
for (int i = 1; i <= count; i++) {
map.put(rsmd.getColumnLabel(i),this.result.getObject(i));
}
JSONObject json = JSONObject.fromObject(map);
list.add(json.toString());
}
}catch(Exception e) {
e.printStackTrace();
}finally {
this.CloseDb();
}
return list;
}
//delete and update and insert
public boolean DeleteOrUpdateInsert(String sql) {
boolean bool;
try {
this.pre=this.connect.prepareStatement(sql);
this.pre.executeUpdate();
System.out.println("操作成功！！！！！！");
bool =true;
}catch (Exception e) {
bool=false;
e.printStackTrace();
}finally {
this.CloseDb();
}
return bool;
}
public static void main(String[] args){
String url="jdbc:oracle:thin:@localhost:1521/orcl";
String user="SCOTT";
String pwd="pipeline";
// String sql="select * from bonus";
OrcTest ob= new OrcTest(url, user, pwd);
// System.out.println(ob.exeselect(sql));
// System.out.println(ob.connect);
System.out.println(ob.DeleteOrUpdateInsert("insert into bonus(ENAME,JOB,SAL,COMM)VALUES('del','job_del',122,3)"));
}
}
============================输出如下：
操作成功！！！！！！
关闭事物
关闭连接
true
==============
关闭事物
关闭结果对象
关闭连接
[{"ENAME":"cdp","COMM":1,"JOB":"jod_1234","SAL":1254}, {"ENAME":"cdp3","COMM":2,"JOB":"job003","SAL":1333}, {"ENAME":"cdp4","COMM":2,"JOB":"job004","SAL":1444}, {"ENAME":"cdp1","COMM":2,"JOB":"job222","SAL":1235}]
oracle.jdbc.driver.T4CConnection@533e64
json转换java 需要全jar包下载git地址 https://github.com/chen1932390299/pyscripts.git
