spring - Pass get values to method and call in jsp page -

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i'm using spring mvc, making small web-app. have form in jsp page, , i'm trying pass values .get controller method , display results called method after pressing "submit" button on same jsp page or another, preferrably on same page.

this how form looks like: http://i65.tinypic.com/6gyo02.png

this method want called after getting values form: 

public void calcmacros() {         int goal = 0;         if (this.goal == 0.7){             goal = 1;         } else if (this.goal == 0.9) {             goal = 2;         } else if (this.goal == 1) {             goal = 3;         } else if (this.goal == 1.2){             goal = 4;         }          switch (goal) {             case 1: weightloss();                     weightlossprotcalc();                     weightlosscarbcalc();                     weightlossfatcalc();                 break;             case 2: weightloss();                     weightlossprotcalc();                     weightlosscarbcalc();                     weightlossfatcalc();                 break;             case 3: tdeecalculator();                     maintainproteincalc();                     maintaincarbcalc();                     maintainfatcalc();                 break;             case 4: weightgain();                     weightgainprotcalc();                     weightgaincarbcalc();                     weightgainfatcalc();                 break;             default:                 break;         }         system.out.println("selected goal " + goal + "and proper methods have been called.");     }

best question be, how can transform method .post controller can display it's results in same jsp page. how call method/controller in jsp page?

thank you!

edit: controller

@requestmapping(value = "/calculator" ,  method = requestmethod.get)     public string calculatorpage(modelmap model, macrocalculatorform macrocalculatorform) {         model.addattribute("user",getprincipal());         macrocalculatorform.calcmacros(); return "calculator";     }

would it, or should rewrite method want called controller?

you should have 2 methods in @controller:

(1) 1 method supports get : provide display view of first page (before calculations).

(2) 1 method supports post: process inputs received first page , sending results view (jsp) back.


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