jsp如何与Java进行数据传递

随风而醒 2017-04-06 12:10:35

jsp中是这样的：

<div id="r-result">

		用户名: <input id="cityName" type="text"

			style="width: 100px; margin-right: 10px;" /> <input type="button"

			value="定位" onclick="theLocation()" />

	</div>

Java中函数处理是:获取jsp中的cityName值，返回一个链表到jsp，然后jsp对链表在进行操作

问一下有什么办法？

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仵夨飞鸟汐 2017-04-07

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<form action="URL请求" method="post" > -------------------------利用form表单发送post请求---------------------- 至于input type 改成submit </form>

随风而醒 2017-04-07

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引用 9 楼 CORA_S_T 的回复:

JSP:

<body>
    <form action="GetInfo" method="get">
        <input name="cityName" type="text">
        <input type="submit" value="定位"> 
    </form>
</body>

Servlet:

	@WebServlet("/GetInfo")
public class GetInfo extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public GetInfo() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		String cityName = request.getParameter("cityName");
		System.out.println(cityName);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}

非常感谢！！已经写好了。

千杯不醉476 2017-04-07

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JSP:

<body>
    <form action="GetInfo" method="get">
        <input name="cityName" type="text">
        <input type="submit" value="定位"> 
    </form>
</body>

Servlet:

	@WebServlet("/GetInfo")
public class GetInfo extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public GetInfo() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		String cityName = request.getParameter("cityName");
		System.out.println(cityName);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}