java运算结束后结果怎么返回jsp页面 jsp java在查询结果界面做删除操作,返回到查询结果页面
\u5982\u4f55\u4f7fJSP\u9875\u9762\u8868\u5355\u53d1\u9001\u81f3Servlet\u5904\u7406\u540e\u8fd4\u56de\u539fJSP\u9875\u9762\uff0c\u540c\u65f6\u628a\u8fd4\u56de\u7ed3\u679c\u663e\u793a\u5728\u8868\u5355\u4e0b\u9762\uff1f\u4f60\u8bbf\u95ee\u4e86Progress.java\u8fd9\u4e2aservlet\u7136\u540eforward\u5230MyJsp.jsp\uff0c\u5730\u5740\u680f\u4f1a\u51fa\u73b0\u4f60\u7684servlet url\u540d\u5b57\uff0c\u5982\u679c\u4f60\u7684servlet\u914d\u7f6e\u7684url\u540d\u5b57\u53ebProgress.java\uff0c\u90a3\u5b83\u5c31\u663e\u793aProgress.java\u3002
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"]]HttpSession session = request.getSession();String token = (String)session.getAttribute("token");if(formtoken.equals(token)){ // do somthing session.removeAttribute("token");}else{ response.getWriter().println("\u8bf7\u4e0d\u8981\u91cd\u590d\u63d0\u4ea4\uff01");}
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可以前台跳转通过js等实现，window.location='jsp';，也可以后台跳转request.getRequestDispatcher("你的jsp页地址.jsp").forward(request,response);把结果存到那几个作用域里面，然后再jsp用el表达式或者jsp标签取就行了，希望能帮到你。
request.setAttr...("a","a");
页面
request.getAttr...("a");
绛旓細鍙互鍓嶅彴璺宠浆閫氳繃js绛夊疄鐜帮紝window.location='jsp';锛屼篃鍙互鍚庡彴璺宠浆request.getRequestDispatcher("浣犵殑jsp椤靛湴鍧.jsp").forward(request,response);
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