package com.lgx8.common.payment.util;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.apache.commons.httpclient.NameValuePair;
import com.lgx8.common.payment.config.AlipayMerchantConfig;
import com.lgx8.common.payment.util.httpClient.HttpProtocolHandler;
import com.lgx8.common.payment.util.httpClient.HttpRequest;
import com.lgx8.common.payment.util.httpClient.HttpResponse;
import com.lgx8.common.payment.util.httpClient.HttpResultType;
public class AlipayMerchantSubmit {
/**
* 生成要请求给支付宝的参数数组
* @param sParaTemp 请求前的参数数组
* @return 要请求的参数数组
*/
public static Map<String, String> buildRequestPara(Map<String, String> sParaTemp) {
//除去数组中的空值和签名参数
Map<String, String> sPara = AlipayMerchantCore.paraFilter(sParaTemp);
//生成签名结果
String mysign = AlipayMerchantCore.buildMysign(sPara);
//签名结果与签名方式加入请求提交参数组中
sPara.put("sign", mysign);
sPara.put("sign_type", AlipayMerchantConfig.sign_type);
return sPara;
}
/**
* 构造提交表单HTML数据
* @param sParaTemp 请求参数数组
* @param gateway 网关地址
* @param strMethod 提交方式。两个值可选：post、get
* @param strButtonName 确认按钮显示文字
* @return 提交表单HTML文本
*/
public static String buildForm(Map<String, String> sParaTemp, String gateway, String strMethod,
String strButtonName) {
//待请求参数数组
Map<String, String> sPara = buildRequestPara(sParaTemp);
List<String> keys = new ArrayList<String>(sPara.keySet());
StringBuffer sbHtml = new StringBuffer();
sbHtml.append("<form id=\"alipaysubmit\" name=\"alipaysubmit\" action=\"" + gateway
+ "_input_charset=" + AlipayMerchantConfig.input_charset + "\" method=\"" + strMethod
+ "\">");
for (int i = 0; i < keys.size(); i++) {
String name = (String) keys.get(i);
String value = (String) sPara.get(name);
sbHtml.append("<input type=\"hidden\" name=\"" + name + "\" value=\"" + value + "\"/>");
}
//submit按钮控件请不要含有name属性
sbHtml.append("<input type=\"submit\" value=\"" + strButtonName + "\" style=\"display:none;\"></form>");
sbHtml.append("<script>document.forms['alipaysubmit'].submit();</script>");
return sbHtml.toString();
}
/**
* MAP类型数组转换成NameValuePair类型
* @param properties MAP类型数组
* @return NameValuePair类型数组
*/
private static NameValuePair[] generatNameValuePair(Map<String, String> properties) {
NameValuePair[] nameValuePair = new NameValuePair[properties.size()];
int i = 0;
for (Map.Entry<String, String> entry : properties.entrySet()) {
nameValuePair[i++] = new NameValuePair(entry.getKey(), entry.getValue());
}
return nameValuePair;
}
/**
* 构造模拟远程HTTP的POST请求，获取支付宝的返回XML处理结果
* @param sParaTemp 请求参数数组
* @param gateway 网关地址
* @return 支付宝返回XML处理结果
* @throws Exception
*/
public static String sendPostInfo(Map<String, String> sParaTemp, String gateway)
throws Exception {
//待请求参数数组
Map<String, String> sPara = buildRequestPara(sParaTemp);
HttpProtocolHandler httpProtocolHandler = HttpProtocolHandler.getInstance();
HttpRequest request = new HttpRequest(HttpResultType.BYTES);
//设置编码集
request.setCharset(AlipayMerchantConfig.input_charset);
request.setParameters(generatNameValuePair(sPara));
request.setUrl(gateway+"_input_charset="+AlipayMerchantConfig.input_charset);
HttpResponse response = httpProtocolHandler.execute(request);
if (response == null) {
return null;
}
String strResult = response.getStringResult();
return strResult;
}
}