java从sql语句中找出字符串中的时间字符，添加to_date格式
最近用了jeecgboot框架，低代码生成的sql语句不能直接运行，数据库中的时间是date类型，sql语句中的时间是字符类型，需要转换一下。
生成的sql语句（示例）：
时间是字符串类型：'2023-05-10 18:05:11'
INSERT INTO sys_permission(id, parent_id, name, url, component, component_name, redirect, menu_type, perms, perms_type, sort_no, always_show, icon, is_route, is_leaf, keep_alive, hidden, hide_tab, description, status, del_flag, rule_flag, create_by, create_time, update_by, update_time, internal_or_external)
VALUES ('2023051006055810110', NULL, '制度变更', '/com/tbChgOrderList', 'com/TbChgOrderList', NULL, NULL, 0, NULL, '1', 0.00, 0, NULL, 1, 0, 0, 0, 0, NULL, '1', 0, 0, 'admin', '2023-05-10 18:05:11', NULL, NULL, 0);
预期转换的sql语句（示例）：
INSERT INTO sys_permission(id, parent_id, name, url, component, component_name, redirect, menu_type, perms, perms_type, sort_no, always_show, icon, is_route, is_leaf, keep_alive, hidden, hide_tab, description, status, del_flag, rule_flag, create_by, create_time, update_by, update_time, internal_or_external) VALUES ('2023051006055810110', NULL, '制度变更', '/com/tbChgOrderList', 'com/TbChgOrderList', NULL, NULL, 0, NULL, '1', 0.00, 0, NULL, 1, 0, 0, 0, 0, NULL, '1', 0, 0, 'admin', TO_DATE( '2023-05-10 18:05:11', 'SYYYY-MM-DD HH24:MI:SS' ), NULL, NULL, 0);
添加to_date转化成date格式：TO_DATE( '2023-05-10 18:05:11', 'SYYYY-MM-DD HH24:MI:SS' )
目的：sql语句中找出字符串中的时间字符，添加to_date格式
思路：1、读取sql文件，拿出sql语句
2、找出sql语句中的时间字符，替换为to_date的格式
3、打印出转换后的sql
代码如下：
package org.jeecg.utils;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class JeecgUtil {
static JeecgUtil jeecgUtil = new JeecgUtil();
//完整文件路径
static String sqlFilePath = "file/jeecg-boot.sql";
/**
* jeecgboot生成的sql语句中时间 字符串类型 转成 date类型
* eg：'2023-05-10 18:05:45' --> TO_DATE( '2023-05-10 18:05:45', 'SYYYY-MM-DD HH24:MI:SS' )
*
* @param sqlFilePath
* @throws
* @Description: 从字符串中截取出正确的时间字符串, 并将时间转化成to_date格式的字符串
* @return:
*/
public static List chgSqlString(String sqlFilePath) {
//日期正则表达式
String regs[] = {"\\d{4}年\\d{2}月\\d{2}日\\s\\d{2}时\\d{2}分\\d{2}秒",
"\\d{4}年\\d{2}月\\d{2}日\\s\\d{1}时\\d{2}分\\d{2}秒",
"\\d{4}年\\d{1}月\\d{2}日\\s\\d{1}时\\d{2}分\\d{2}秒",
"\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}时\\d{2}分\\d{2}秒",
"\\d{4}年\\d{2}月\\d{2}日\\d{2}时\\d{2}分\\d{2}秒",
"\\d{4}年\\d{2}月\\d{2}日\\s\\d{2}时\\d{2}分",
"\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}时\\d{2}分",
"\\d{4}年\\d{1}月\\d{2}日\\s\\d{1}时\\d{2}分",
"\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}时\\d{2}分",
"\\d{4}年\\d{2}月\\d{2}日\\d{2}时\\d{2}分",
"\\d{4}年\\d{2}月\\d{2}日\\s\\d{2}时",
"\\d{4}年\\d{2}月\\d{2}日\\s\\d{1}时",
"\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}时",
"\\d{4}年\\d{1}月\\d{2}日\\s\\d{1}时",
"\\d{4}年\\d{2}月\\d{2}日\\d{2}时", "\\d{4}年\\d{2}月\\d{2}日",
"\\d{4}年\\d{2}月\\d{1}日", "\\d{4}年\\d{1}月\\d{2}日",
"\\d{4}年\\d{1}月\\d{1}日",
"\\d{4}年\\d{2}月\\d{2}日\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{4}年\\d{2}月\\d{2}日\\s\\d{2}:\\d{1}:\\d{2}",
"\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}:\\d{1}:\\d{2}",
"\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{4}年\\d{2}月\\d{2}日\\d{2}:\\d{2}:\\d{2}",
"\\d{4}年\\d{2}月\\d{2}日\\s\\d{2}:\\d{2}",
"\\d{4}年\\d{2}月\\d{2}日\\s\\d{1}:\\d{2}",
"\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}:\\d{2}",
"\\d{4}年\\d{1}月\\d{2}日\\s\\d{1}:\\d{2}",
"\\d{4}年\\d{2}月\\d{2}日\\d{2}:\\d{2}",
"\\d{4}年\\d{2}月\\d{2}日\\s\\d{2}",
"\\d{4}年\\d{2}月\\d{2}日\\s\\d{1}",
"\\d{4}年\\d{1}月\\d{2}日\\s\\d{2}",
"\\d{4}年\\d{1}月\\d{2}日\\s\\d{1}",
"\\d{4}年\\d{2}月\\d{2}日\\d{2}",
"\\d{4}-\\d{2}-\\d{2}\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{4}-\\d{2}-\\d{2}\\s\\d{1}:\\d{2}:\\d{2}",
"\\d{4}-\\d{1}-\\d{2}\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{4}-\\d{1}-\\d{2}\\s\\d{1}:\\d{2}:\\d{2}",
"\\d{4}-\\d{2}-\\d{2}\\s\\d{2}:\\d{2}",
"\\d{4}-\\d{2}-\\d{2}\\s\\d{1}:\\d{2}",
"\\d{4}-\\d{2}-\\d{2}\\s\\d{2}", "\\d{4}-\\d{2}-\\d{2}",
"\\d{4}-\\d{2}-\\d{1}", "\\d{4}-\\d{1}-\\d{2}",
"\\d{4}-\\d{1}-\\d{1}",
"\\d{4}-\\d{2}-\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒",
"\\d{4}-\\d{2}-\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒",
"\\d{4}-\\d{1}-\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒",
"\\d{4}-\\d{1}-\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒",
"\\d{4}-\\d{1}-\\d{1}\\s\\d{1}时\\d{2}分\\d{2}秒",
"\\d{4}-\\d{2}-\\d{2}\\s\\d{2}时\\d{2}分",
"\\d{4}-\\d{2}-\\d{2}\\s\\d{1}时\\d{2}分",
"\\d{4}-\\d{1}-\\d{2}\\s\\d{2}时\\d{2}分",
"\\d{4}-\\d{1}-\\d{2}\\s\\d{1}时\\d{2}分",
"\\d{4}-\\d{2}-\\d{2}\\s\\d{2}时",
"\\d{4}-\\d{2}-\\d{2}\\s\\d{1}时",
"\\d{4}-\\d{1}-\\d{2}\\s\\d{2}时",
"\\d{4}-\\d{1}-\\d{2}\\s\\d{1}时", "\\d{4}.\\d{2}.\\d{2}",
"\\d{4}.\\d{2}.\\d{1}", "\\d{4}.\\d{1}.\\d{2}",
"\\d{4}.\\d{1}.\\d{1}",
"\\d{4}.\\d{2}.\\d{2}\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{4}.\\d{2}.\\d{2}\\s\\d{1}:\\d{2}:\\d{2}",
"\\d{4}.\\d{1}.\\d{2}\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{4}.\\d{1}.\\d{2}\\s\\d{1}:\\d{2}:\\d{2}",
"\\d{4}.\\d{1}.\\d{1}\\s\\d{1}:\\d{2}:\\d{2}",
"\\d{4}.\\d{2}.\\d{2}\\s\\d{2}:\\d{2}",
"\\d{4}.\\d{2}.\\d{2}\\s\\d{1}:\\d{2}",
"\\d{4}.\\d{1}.\\d{2}\\s\\d{2}:\\d{2}",
"\\d{4}.\\d{1}.\\d{2}\\s\\d{1}:\\d{2}",
"\\d{4}.\\d{2}.\\d{2}\\s\\d{2}",
"\\d{4}.\\d{2}.\\d{2}\\s\\d{1}",
"\\d{4}.\\d{1}.\\d{2}\\s\\d{2}",
"\\d{4}.\\d{1}.\\d{2}\\s\\d{1}",
"\\d{4}/\\d{2}/\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒",
"\\d{4}/\\d{2}/\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒",
"\\d{4}/\\d{1}/\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒",
"\\d{4}/\\d{1}/\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒",
"\\d{4}/\\d{2}/\\d{2}\\s\\d{2}时\\d{2}分",
"\\d{4}/\\d{2}/\\d{2}\\s\\d{1}时\\d{2}分",
"\\d{4}/\\d{1}/\\d{2}\\s\\d{2}时\\d{2}分",
"\\d{4}/\\d{1}/\\d{2}\\s\\d{1}时\\d{2}分",
"\\d{4}/\\d{2}/\\d{2}\\s\\d{2}时",
"\\d{4}/\\d{2}/\\d{2}\\s\\d{1}时",
"\\d{4}/\\d{1}/\\d{2}\\s\\d{2}时",
"\\d{4}/\\d{1}/\\d{2}\\s\\d{1}时",
"\\d{4}/\\d{2}/\\d{2}",
"\\d{4}/\\d{2}/\\d{1}",
"\\d{4}/\\d{1}/\\d{2}",
"\\d{4}/\\d{1}/\\d{1}",
"\\d{4}/\\d{2}/\\d{2}\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{4}/\\d{2}/\\d{2}\\s\\d{1}:\\d{2}:\\d{2}",
"\\d{4}/\\d{1}/\\d{2}\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{4}/\\d{1}/\\d{2}\\s\\d{1}:\\d{2}:\\d{2}",
"\\d{4}/\\d{2}/\\d{2}\\s\\d{2}:\\d{2}",
"\\d{4}/\\d{2}/\\d{2}\\s\\d{1}:\\d{2}",
"\\d{4}/\\d{1}/\\d{2}\\s\\d{2}:\\d{2}",
"\\d{4}/\\d{1}/\\d{2}\\s\\d{1}:\\d{2}",
"\\d{4}/\\d{2}/\\d{2}\\s\\d{2}",
"\\d{4}/\\d{2}/\\d{2}\\s\\d{1}",
"\\d{4}/\\d{1}/\\d{2}\\s\\d{2}",
"\\d{4}/\\d{1}/\\d{2}\\s\\d{1}",
"\\d{2}月\\d{2}日\\s\\d{2}时\\d{2}分\\d{2}秒",
"\\d{2}月\\d{2}日\\s\\d{1}时\\d{2}分\\d{2}秒",
"\\d{1}月\\d{2}日\\s\\d{1}时\\d{2}分\\d{2}秒",
"\\d{1}月\\d{2}日\\s\\d{2}时\\d{2}分\\d{2}秒",
"\\d{2}月\\d{2}日\\d{2}时\\d{2}分\\d{2}秒",
"\\d{2}月\\d{2}日\\s\\d{2}时\\d{2}分",
"\\d{1}月\\d{2}日\\s\\d{2}时\\d{2}分",
"\\d{1}月\\d{2}日\\s\\d{1}时\\d{2}分",
"\\d{1}月\\d{2}日\\s\\d{2}时\\d{2}分",
"\\d{2}月\\d{2}日\\d{2}时\\d{2}分",
"\\d{2}月\\d{2}日\\s\\d{2}时",
"\\d{2}月\\d{2}日\\s\\d{1}时",
"\\d{1}月\\d{2}日\\s\\d{2}时",
"\\d{1}月\\d{2}日\\s\\d{1}时",
"\\d{2}月\\d{2}日\\d{2}时", "\\d{4}年\\d{2}月\\d{2}日",
"\\d{2}月\\d{1}日", "\\d{4}年\\d{1}月\\d{2}日",
"\\d{1}月\\d{1}日",
"\\d{2}月\\d{2}日\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{2}月\\d{2}日\\s\\d{2}:\\d{1}:\\d{2}",
"\\d{1}月\\d{2}日\\s\\d{2}:\\d{1}:\\d{2}",
"\\d{1}月\\d{2}日\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{2}月\\d{2}日\\d{2}:\\d{2}:\\d{2}",
"\\d{2}月\\d{2}日\\s\\d{2}:\\d{2}",
"\\d{2}月\\d{2}日\\s\\d{1}:\\d{2}",
"\\d{1}月\\d{2}日\\s\\d{2}:\\d{2}",
"\\d{1}月\\d{2}日\\s\\d{1}:\\d{2}",
"\\d{2}月\\d{2}日\\d{2}:\\d{2}",
"\\d{2}月\\d{2}日\\s\\d{2}",
"\\d{2}月\\d{2}日\\s\\d{1}",
"\\d{1}月\\d{2}日\\s\\d{2}",
"\\d{1}月\\d{2}日\\s\\d{1}",
"\\d{2}月\\d{2}日\\d{2}",
"\\d{2}-\\d{2}\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{2}-\\d{2}\\s\\d{1}:\\d{2}:\\d{2}",
"\\d{1}-\\d{2}\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{1}-\\d{2}\\s\\d{1}:\\d{2}:\\d{2}",
"\\d{2}-\\d{2}\\s\\d{2}:\\d{2}",
"\\d{2}-\\d{2}\\s\\d{1}:\\d{2}",
"\\d{2}-\\d{2}\\s\\d{2}", "\\d{4}-\\d{2}-\\d{2}",
"\\d{2}-\\d{1}", "\\d{4}-\\d{1}-\\d{2}",
"\\d{1}-\\d{1}",
"\\d{2}-\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒",
"\\d{2}-\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒",
"\\d{1}-\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒",
"\\d{1}-\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒",
"\\d{1}-\\d{1}\\s\\d{1}时\\d{2}分\\d{2}秒",
"\\d{2}-\\d{2}\\s\\d{2}时\\d{2}分",
"\\d{2}-\\d{2}\\s\\d{1}时\\d{2}分",
"\\d{1}-\\d{2}\\s\\d{2}时\\d{2}分",
"\\d{1}-\\d{2}\\s\\d{1}时\\d{2}分",
"\\d{2}-\\d{2}\\s\\d{2}时",
"\\d{2}-\\d{2}\\s\\d{1}时",
"\\d{1}-\\d{2}\\s\\d{2}时",
"\\d{1}-\\d{2}\\s\\d{1}时", "\\d{4}.\\d{2}.\\d{2}",
"\\d{2}.\\d{1}", "\\d{4}.\\d{1}.\\d{2}",
"\\d{1}.\\d{1}",
"\\d{2}.\\d{2}\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{2}.\\d{2}\\s\\d{1}:\\d{2}:\\d{2}",
"\\d{1}.\\d{2}\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{1}.\\d{2}\\s\\d{1}:\\d{2}:\\d{2}",
"\\d{1}.\\d{1}\\s\\d{1}:\\d{2}:\\d{2}",
"\\d{2}.\\d{2}\\s\\d{2}:\\d{2}",
"\\d{2}.\\d{2}\\s\\d{1}:\\d{2}",
"\\d{1}.\\d{2}\\s\\d{2}:\\d{2}",
"\\d{1}.\\d{2}\\s\\d{1}:\\d{2}",
"\\d{2}.\\d{2}\\s\\d{2}",
"\\d{2}.\\d{2}\\s\\d{1}",
"\\d{1}.\\d{2}\\s\\d{2}",
"\\d{1}.\\d{2}\\s\\d{1}",
"\\d{2}/\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒",
"\\d{2}/\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒",
"\\d{1}/\\d{2}\\s\\d{2}时\\d{2}分\\d{2}秒",
"\\d{1}/\\d{2}\\s\\d{1}时\\d{2}分\\d{2}秒",
"\\d{2}/\\d{2}\\s\\d{2}时\\d{2}分",
"\\d{2}/\\d{2}\\s\\d{1}时\\d{2}分",
"\\d{1}/\\d{2}\\s\\d{2}时\\d{2}分",
"\\d{1}/\\d{2}\\s\\d{1}时\\d{2}分",
"\\d{2}/\\d{2}\\s\\d{2}时",
"\\d{2}/\\d{2}\\s\\d{1}时",
"\\d{1}/\\d{2}\\s\\d{2}时",
"\\d{1}/\\d{2}\\s\\d{1}时",
"\\d{2}/\\d{2}",
"\\d{2}/\\d{1}",
"\\d{1}/\\d{2}",
"\\d{1}/\\d{1}",
"\\d{2}/\\d{2}\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{2}/\\d{2}\\s\\d{1}:\\d{2}:\\d{2}",
"\\d{1}/\\d{2}\\s\\d{2}:\\d{2}:\\d{2}",
"\\d{1}/\\d{2}\\s\\d{1}:\\d{2}:\\d{2}",
"\\d{2}/\\d{2}\\s\\d{2}:\\d{2}",
"\\d{2}/\\d{2}\\s\\d{1}:\\d{2}",
"\\d{1}/\\d{2}\\s\\d{2}:\\d{2}",
"\\d{1}/\\d{2}\\s\\d{1}:\\d{2}",
"\\d{2}/\\d{2}\\s\\d{2}",
"\\d{2}/\\d{2}\\s\\d{1}",
"\\d{1}/\\d{2}\\s\\d{2}",
"\\d{1}/\\d{2}\\s\\d{1}",
};
//读取文件获取sql语句
String[] sqlStrings = readFile(sqlFilePath);
System.out.println("=========读取到sql条数：" + sqlStrings.length);
//转化完的sql语句list
List sqlStringList = new ArrayList<>();
for (String sqlString : sqlStrings) {
String str = "";
for (String reg : regs) {
String temp = match(reg, sqlString);
if (temp.length() > str.length()) {
str = temp;
if (!"".equals(str)) {
//时间字符串 加上 to_date
str = "'" + str + "'";
sqlString = sqlString.replace(str, "TO_DATE( " + str + ", 'SYYYY-MM-DD HH24:MI:SS' )");
}
}
}
//转换完的语句放进list
sqlStringList.add(sqlString + ";");
//转换完的语句打印到后台
// System.out.println(sqlString + ";");
}
return sqlStringList;
}
/**
* 读文件获取sql语句
*
* @param path
* @return
*/
public static String[] readFile(String path) {
InputStream in = null;
BufferedReader bufferedReader = null;
StringBuffer stringBuffer = new StringBuffer();
try {
// in = new FileInputStream(path);
in = jeecgUtil.getClass().getClassLoader()
.getResourceAsStream(path);
bufferedReader = new BufferedReader(new InputStreamReader(in, Charset.forName("utf-8")));
String line = null;
while ((line = bufferedReader.readLine()) != null) {
String s = line;
//去掉行注释
if (s.trim().startsWith("--")) {
continue;
}
stringBuffer.append(" ").append(line);
}
String[] sqls = stringBuffer.toString().split(";");
return sqls;
} catch (IOException e) {
e.printStackTrace();
} finally {
stringBuffer = null;
try {
if (bufferedReader != null) {
bufferedReader.close();
}
if (in != null) {
in.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
/**
* 根据正则表达式找出sql语句中的时间字符串部分
*
* @param reg 正则表达式
* @param sqlString sql语句
* @return
*/
public static String match(String reg, String sqlString) {
Pattern p = Pattern.compile(reg);
Matcher m = p.matcher(sqlString);
String dateString = "";
if (m.find()) {
dateString += m.group();
}
return dateString;
}
public static void main(String[] args) {
//sql语句处理时间字符串
List sqls = chgSqlString(sqlFilePath);
for (String sql : sqls) {
System.out.println(sql);
}
}
}