Java Data processing

For the form "(type=sita##) && ((ctyp=fpl##) | | (ctyp=chg##) | | (ctyp=cnl##) | | (ctyp=dla##) | | (ctyp=dl##) | | (ctyp=ed##)) && (adep=zsss##)) "The string, often with a certain thing in the judging condition, to calculate the entire condition of the final result (True/false).

The following gives the Java code

1  Packagecom.test;2 3 ImportNet.sourceforge.jeval.Evaluator;4 5  Public classT1 {6 7      Public Static voidMain (string[] args)throwsException {8String condition = "(type=sita##) && (((ctyp=fpl##) | | (ctyp=chg##) | | (ctyp=cnl##) | | (ctyp=dla##) | | (ctyp=dl##) | | (ctyp=ed##)) && (adep=zsss##)) ";9Condition = replaceexpression (condition, "type=", "SITA", "=");TenCondition = replaceexpression (condition, "ctyp=", "FPL", "="); OneCondition = replaceexpression (condition, "adep=", "" "," = "); ASYSTEM.OUT.PRINTLN ("Condition:" +condition);//condition: (1) && ((1) | | (0) | | (0) | | (0) | | (0) | | (0)) && (0)) -          -         /** the * Numeric Expression parsing tool - * Evaluator need to download Jeval package, attached link after this article -          */ -Evaluator Evaluator =NewEvaluator (); +         Booleanb = evaluator.getbooleanresult (condition);//false - System.out.println (b);  +System.out.println (Evaluator.evaluate ("2+3"));//5.0 A          at     } -      -     /** -      *  -      * @paramcondition -      * @paramReplace in      * @paramtobecompared -      * @paramoperators to      * @return +      * @throwsException throws an exception for non-conforming calculations -      */ the      Public Staticstring Replaceexpression (string condition, string replace, *String tobecompared, String operators)throwsException { $          while(Condition.contains (replace)) {Panax Notoginseng             intStart =Condition.indexof (replace); -             intEnd = Condition.indexof ("# #", start); theString Express =condition.substring (start, end); +Express =express.substring (Replace.length ()); A             if(">=". Equals (Operators)) { the  +                 if(Long.parselong (tobecompared) >=Long.parselong (Express)) { -Condition = condition.substring (0, start) + "1" $+ condition.substring (end + 2)); $}Else { -Condition = condition.substring (0, start) + "0" -+ condition.substring (end + 2)); the                 } -}Else if("<=". Equals (Operators)) {Wuyi                 if(Long.parselong (tobecompared) <=Long.parselong (Express)) { theCondition = condition.substring (0, start) + "1" -+ condition.substring (end + 2)); Wu}Else { -Condition = condition.substring (0, start) + "0" About+ condition.substring (end + 2)); $                 } -}Else if(">". Equals (Operators)) { -  -                 if(Long.parselong (tobecompared) >Long.parselong (Express)) { ACondition = condition.substring (0, start) + "1" ++ condition.substring (end + 2)); the}Else { -Condition = condition.substring (0, start) + "0" $+ condition.substring (end + 2)); the                 } the}Else if("<". Equals (Operators)) { the                 if(Long.parselong (tobecompared) <Long.parselong (Express)) { theCondition = condition.substring (0, start) + "1" -+ condition.substring (end + 2)); in}Else { theCondition = condition.substring (0, start) + "0" the+ condition.substring (end + 2)); About                 } the}Else if("!=". Equals (Operators)) { the                 if(!express.equals (tobecompared)) { theCondition = condition.substring (0, start) + "1" ++ condition.substring (end + 2)); -}Else { theCondition = condition.substring (0, start) + "0"Bayi+ condition.substring (end + 2)); the                 } the}Else { -                 if("raddress=". Equals (replace) { -string[] Tobecomparedarray = Tobecompared.split (""); theString flag = "0"; the                      for(String tobecomparedstring:tobecomparedarray) { the                         if(Express.equals (tobecomparedstring)) { theFlag = "1"; -                              Break; the                         } the                     } theCondition = condition.substring (0, start) +Flag94+ condition.substring (end + 2)); the  the}Else { the                     if(Express.equals (tobecompared)) {98Condition = condition.substring (0, start) + "1" About+ condition.substring (end + 2)); -}Else {101Condition = condition.substring (0, start) + "0"102+ condition.substring (end + 2));103                     }104                 } the             }106         }107         returncondition;108     }109}

Related jar package Download:http://files.cnblogs.com/files/x-jingxin/jeval.zip

Java Data processing