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如何从Java类中获取值并将其映射到JSP中的select语句?

[英]How to get value from java class and map it to select statement in jsp?

我在我的Java类DetailsForm中设置了planValue的值。 我需要在jsp中获取该属性值。 我将如何获得? 我在jsp中使用与Java中的planValue相同的名称。

谢谢

使用类似以下Servlet代码的内容:

protected void doGet(HttpServletRequest request,
                HttpServletResponse response) throws ServletException, IOException         {
        performTask(request, response);
    }

protected void doPost(HttpServletRequest request,
        HttpServletResponse response) throws ServletException, IOException {
    performTask(request, response);
}

public void performTask(HttpServletRequest request,
        HttpServletResponse response) throws ServletException, IOException {               //create your object
            DetailsForm detailsForm = new DetailsForm();
            //set planValue
            detailsForm.setPlanValue("some plan value");
            //set your object as attribute and use forward
    request.setAttribute("detailsForm", detailsForm);
            //relative path to your JSP
    request.getRequestDispatcher("/pages/some.jsp").forward(request,
            response);

}

还有你的some.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<html>
<head>
<title>
Some JSP
</title>
<head>
<body>
${detailsForm.plainValue}
</body>
</html>

并且您需要在DetailsForm类中具有plainValue的getter方法。

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