cn.afterturn.easypoi.wps.service.EasyPoiWpsUtil Maven / Gradle / Ivy
package cn.afterturn.easypoi.wps.service;
import cn.hutool.json.JSONUtil;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.commons.codec.digest.HmacUtils;
import org.apache.commons.lang3.StringUtils;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;
import java.text.SimpleDateFormat;
import java.util.*;
import static org.apache.commons.codec.binary.Base64.encodeBase64String;
/**
* Wps相关的工具类
*
* @author jueyue on 20-5-8.
*/
public class EasyPoiWpsUtil {
public static String getKeyValueStr(Map params) {
List keys = new ArrayList() {
{
for (Map.Entry entry : params.entrySet()) {
add(entry.getKey());
}
}
};
StringBuilder sb = new StringBuilder();
for (String key : keys) {
String value = params.get(key) + "&";
sb.append(key).append("=").append(value);
}
return sb.toString();
}
public static String getSignature(Map params, String appSecret) {
List keys = new ArrayList() {
{
for (Map.Entry entry : params.entrySet()) {
add(entry.getKey());
}
}
};
// 将所有参数按key的升序排序
keys.sort(String::compareTo);
// 构造签名的源字符串
StringBuilder contents = new StringBuilder();
for (String key : keys) {
if (key.equals("_w_signature")) {
continue;
}
contents.append(key).append("=").append(params.get(key));
}
contents.append("_w_secretkey=").append(appSecret);
// 进行hmac sha1 签名
byte[] bytes = HmacUtils.hmacSha1(appSecret.getBytes(), contents.toString().getBytes());
//字符串经过Base64编码
String sign = encodeBase64String(bytes);
try {
return URLEncoder.encode(sign, "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
}
public Map paramToMap(String paramStr) {
String[] params = paramStr.split("&");
return new HashMap() {
{
for (String param1 : params) {
String[] param = param1.split("=");
if (param.length >= 2) {
String key = param[0];
StringBuilder value = new StringBuilder(param[1]);
for (int j = 2; j < param.length; j++) {
value.append("=").append(param[j]);
}
put(key, value.toString());
}
}
}
};
}
public static String getGMTDate(){
Calendar cd = Calendar.getInstance();
SimpleDateFormat sdf = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss 'GMT'" , Locale.US);
sdf.setTimeZone(TimeZone.getTimeZone("GMT")); // 设置时区为GMT
String str = sdf.format(cd.getTime());
return str;
}
/**
* 计算MD5
* @param paramMap 参加运算的参数，调转换接口时，参数的顺序需与调用API时一致；调查询接口时，传null
*
*/
public static String getMD5(Map paramMap) {
String req = "";
if (paramMap != null){
req = JSONUtil.toJsonStr(paramMap);
}
String md5Value = DigestUtils.md5Hex(req);
return md5Value;
}
/**
* 生成签名
* @param action GET、POST
* @param url 调用接口的url，转换接口时传入接口地址不带参；查询接口时地址带参数
* @param contentMd5 通过getMD5方法计算的值
* @param headerDate 通过getGMTDate方法计算的值
* */
public static String getSignature(String action, String url, String contentMd5, String headerDate, String contentType, String appsecret) throws MalformedURLException {
String req = getUri(url);
String signStr = action + "\n" + contentMd5 + "\n" + contentType + "\n" + headerDate + "\n" + req ;
// 进行hmac sha1 签名
byte[] bytes = HmacUtils.hmacSha1(appsecret.getBytes(), signStr.toString().getBytes());
String sign = encodeBase64String(bytes); //
return sign;
}
/**
* 取得地址的uri
* （去掉地址中的域名）
* */
private static String getUri(String link) throws MalformedURLException {
URL url = new URL(link);
String key = url.getPath();
if (!StringUtils.isEmpty(url.getQuery())){
key = key + "?"+ url.getQuery();
}
return key;
}
}