zhouxiang
2022-04-25 8ab2ad5580212b91df848e4c127f2a682485fde3
src/main/java/com/hx/mybatis/aes/springbean/SqlUtils.java
@@ -15,6 +15,8 @@
import com.alibaba.druid.util.JdbcConstants;
import com.alibaba.druid.util.JdbcUtils;
import com.hx.util.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.Collection;
@@ -26,6 +28,9 @@
 * @author CJH 2022-01-12
 */
public class SqlUtils {
    //log4j日志
    private static Logger logger = LoggerFactory.getLogger(SqlUtils.class.getName());
    /**查询加密数据处理,只对查询做处理,select返回不做处理
     * @param sql sql语句
@@ -39,10 +44,24 @@
        //获取格式化的slq语句
        sql = sqlStatement.toString();
        //解析select查询
        //SQLSelect sqlSelect = sqlStatement.getSelect()
        //获取sql查询块
        SQLSelectQueryBlock sqlSelectQuery = (SQLSelectQueryBlock)sqlStatement.getSelect().getQuery() ;
        SQLSelectQueryBlock sqlSelectQuery = null;
        boolean b = true;
        try{
            sqlSelectQuery = (SQLSelectQueryBlock)sqlStatement.getSelect().getQuery() ;
        }catch (Exception e){
            b = false;
            logger.error("解析sql报错:"+e.getMessage());
        }
        if(!b){
            return "err";
        }
        StringBuffer out = new StringBuffer() ;
        //创建sql解析的标准化输出
        SQLASTOutputVisitor sqlastOutputVisitor = SQLUtils.createFormatOutputVisitor(out , null , JdbcUtils.MYSQL) ;
@@ -138,7 +157,7 @@
                }else{
                    tableAl = column.getName();
                }
                sql = sql.replaceAll("\\b"+tableAl+"\\b","AES_DECRYPT(UNHEX("+tableAl+"),'"+aeskey+"')");
                sql = sql.replaceAll("((?<!\\.)\\b"+tableAl+"\\b(?!\\.))","AES_DECRYPT(UNHEX("+tableAl+"),'"+aeskey+"')");
            }
        }
        return sqlSelect.toString()+sql;
@@ -247,7 +266,7 @@
                }else{
                    tableAl = column.getName();
                }
                sql = sql.replaceAll("\\b"+tableAl+"\\b","AES_DECRYPT(UNHEX("+tableAl+"),'"+aeskey+"')");
                sql = sql.replaceAll("((?<!\\.)\\b"+tableAl+"\\b(?!\\.))","AES_DECRYPT(UNHEX("+tableAl+"),'"+aeskey+"')");
            }
        }
        return sqlSelect.toString()+sql;
@@ -411,11 +430,11 @@
                }else{
                    tableAl = column.getName();
                }
                sqlWhere = sqlWhere.replaceAll("\\b"+tableAl+"\\b","AES_DECRYPT(UNHEX("+tableAl+"),'"+aeskey+"')");
                sqlWhere = sqlWhere.replaceAll("((?<!\\.)\\b"+tableAl+"\\b(?!\\.))","AES_DECRYPT(UNHEX("+tableAl+"),'"+aeskey+"')");
            }
        }
        splicingSql.append(sqlWhere.toString());
        splicingSql.append(sqlWhere);
        return splicingSql.toString();
    }
@@ -489,11 +508,11 @@
                }else{
                    tableAl = column.getName();
                }
                sqlWhere = sqlWhere.replaceAll("\\b"+tableAl+"\\b","AES_DECRYPT(UNHEX("+tableAl+"),'"+aeskey+"')");
                sqlWhere = sqlWhere.replaceAll("((?<!\\.)\\b"+tableAl+"\\b(?!\\.))","AES_DECRYPT(UNHEX("+tableAl+"),'"+aeskey+"')");
            }
        }
        splicingSql.append(sqlWhere.toString());
        splicingSql.append(sqlWhere);
        return splicingSql.toString();
    }