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//ÕâÒ»²½¾ÍÊÇ´ÓsessionÖлñÈ¡¹ºÎï³µ.
Vector car = (Vector) session.getAttribute("car");
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IndexForm inf = (IndexForm) form;
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product_do pdo = new product_do();
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String[] choice = inf.getChoice();
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if (choice.length == 0) {
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return mapping.getInputForward();
} else {
//Èç¹û²»Îª¿Õ,±éÀúÕâ¸öÊý×é.
for (int i = 0; i < choice.length; i++) {
//ÉùÃ÷Ò»¸ö²¼¶ûÐͱäÁ¿,ÓÃÓÚÒÔºó¶ÔÓÚ¹ºÂòÖØ¸´ÉÌÆ·ÔòÊýÁ¿µþ¼ÓµÄ¿ØÖÆ.
boolean f = false;
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productBean pb = pdo.showproductByid(Integer
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