/**
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* Alipay.com Inc.
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* Copyright (c) 2004-2020 All Rights Reserved.
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*/
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package com.alipay.easysdk.kernel.util;
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import java.util.Map;
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import java.util.Map.Entry;
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/**
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* 生成页面信息辅助类
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*
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* @author zhongyu
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* @version : PageUtil.java, v 0.1 2020年02月12日 3:11 下午 zhongyu Exp $
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*/
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public class PageUtil {
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/**
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* 生成表单
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*
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* @param actionUrl 表单提交链接
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* @param parameters 表单参数
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* @return 表单字符串
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*/
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public static String buildForm(String actionUrl, Map<String, String> parameters) {
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return "<form name=\"punchout_form\" method=\"post\" action=\""
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+ actionUrl
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+ "\">\n"
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+ buildHiddenFields(parameters)
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+ "<input type=\"submit\" value=\"立即支付\" style=\"display:none\" >\n"
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+ "</form>\n"
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+ "<script>document.forms[0].submit();</script>";
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}
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private static String buildHiddenFields(Map<String, String> parameters) {
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if (parameters == null || parameters.isEmpty()) {
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return "";
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}
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StringBuilder builder = new StringBuilder();
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for (Entry<String, String> pair : parameters.entrySet()) {
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// 除去参数中的空值
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if (pair.getKey() == null || pair.getValue() == null) {
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continue;
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}
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builder.append(buildHiddenField(pair.getKey(), pair.getValue()));
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}
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return builder.toString();
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}
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private static String buildHiddenField(String key, String value) {
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StringBuilder builder = new StringBuilder(64);
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builder.append("<input type=\"hidden\" name=\"");
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builder.append(key);
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builder.append("\" value=\"");
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//转义双引号
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String a = value.replace("\"", """);
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builder.append(a).append("\">\n");
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return builder.toString();
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}
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}
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