SetParamJS.java_setparam js-优快云博客

本文链接：https://blog.youkuaiyun.com/tutengwolf/article/details/4694576

本文介绍了一个名为SetParamJS的自定义JSP标签，该标签用于在网页中动态生成JavaScript代码，实现设置隐藏域值的功能，并通过调用特定函数来提交表单。此标签能够简化前端与后端的数据交互过程。

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package com.huawei.common.util;

import java.io.IOException;

import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.Tag;
import javax.servlet.jsp.tagext.TagSupport;

public class SetParamJS extends TagSupport {
    private String dynServlet = "servlet/DynamicMakeBean";

    public int doStartTag() {
        JspWriter out = this.pageContext.getOut();
        try {
            out.write("<script type=/"text/javascript/">"
                            + "function setParam(beanUrl,actionUrl,attrVoName,filedType){"
                            + "document.getElementById('beanUrl').value=beanUrl;"
                            + "document.getElementById('actionUrl').value=actionUrl;"
                            + "document.getElementById('attrVoName').value=attrVoName;"
                            + "document.getElementById('fieldType').value=filedType;}"
                            + "function submitPubOper(opertype){"
                            + "document.getElementById('operType').value=opertype;"
                            + "document.forms[0].action=/""+dynServlet+"/";"
                            + "document.forms[0].submit();}" + "</script>");
            out.write("<intput type='hidden' id='beanUrl' name='beanUrl' value=''>");
            out.write("<input type='hidden' id='actionUrl' name='actionUrl' value=''>");
            out.write("<input type='hidden' id='attrVoName' name='attrVoName' value=''>");
            out.write("<input type='hidden' id='fieldType' name='fieldType' value=''>");
            out.write("<input type='hidden' id='operType' name='operType' value=''>");
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return Tag.SKIP_BODY;
    }

    public void setDynServlet(String dynServlet) {
        this.dynServlet = dynServlet;
    }


}