字符串 签名认证

DZMD5.java

package systems.baseutil.tool;import java.io.UnsupportedEncodingException;import java.security.SignatureException;import org.apache.commons.codec.digest.DigestUtils;import org.apache.commons.lang3.StringUtils;/** * 功能：支付宝MD5签名处理核心文件，不需要修改* 版本：3.3* 修改日期：2012-08-17* 说明：* 以下代码只是为了方便商户测试而提供的样例代码，商户可以根据自己网站的需要，按照技术文档编写,并非一定要使用该代码。* 该代码仅供学习和研究支付宝接口使用，只是提供一个* */public class DZMD5 {    /**     * 签名字符串     * @param text 需要签名的字符串     * @param key 密钥     * @param input_charset 编码格式     * @return 签名结果     */    public static String sign(String text, String key, String input_charset) {    text = StringUtils.isBlank(text)?("key=" + key):(text + "&key=" + key);        return DigestUtils.md5Hex(getContentBytes(text, input_charset));    }        /**     * 签名字符串     * @param text 需要签名的字符串     * @param sign 签名结果     * @param key 密钥     * @param input_charset 编码格式     * @return 签名结果     */    public static boolean verify(String text, String sign, String key, String input_charset) {    String mysign = sign(text, key, input_charset);    if(mysign.equals(sign)) {    return true;    }    else {    return false;    }    }    /**     * @param content     * @param charset     * @return     * @throws SignatureException     * @throws UnsupportedEncodingException      */    private static byte[] getContentBytes(String content, String charset) {        if (charset == null || "".equals(charset)) {            return content.getBytes();        }        try {            return content.getBytes(charset);        } catch (UnsupportedEncodingException e) {            throw new RuntimeException("MD5签名过程中出现错误,指定的编码集不对,您目前指定的编码集是:" + charset);        }    }}

DZSignUtils.java

package systems.baseutil.tool;import java.io.UnsupportedEncodingException;import java.util.ArrayList;import java.util.Collections;import java.util.HashMap;import java.util.List;import java.util.Map;public class DZSignUtils {private static final String KEY = "2b3befd6c0be6d15eef53fe3c25df0fb";public static String sign(Map<String, String> parameterMap) {if(parameterMap == null){return null;}Map<String, String> filterParameterMap = filterParameter(parameterMap);String linkParameterStr = linkFileName(filterParameterMap);return DZMD5.sign(linkParameterStr, KEY, "UTF-8");}/**去除key=sign 的键值对 * @param parameterMap */public static Map<String, String> filterParameter(Map<String, String> parameterMap) {Map<String, String> resultMap = new HashMap<String, String>();if(parameterMap != null){for (String key : parameterMap.keySet()) {if("sign".equals(key)){continue;}resultMap.put(key, parameterMap.get(key));}}return resultMap;}/** * 将map的key与value排序用&拼接成字符串 * @param parameterMap * @return key1=value1&key2=value2&key3=value3..... */public static String linkFileName(Map<String, String> parameterMap) {if (parameterMap == null || parameterMap.size() < 1) {return null;}List<String> keyList = new ArrayList<String>(parameterMap.keySet());Collections.sort(keyList);StringBuffer sb = new StringBuffer();for (int i = 0; i < keyList.size(); i++) {String key = keyList.get(i);String keyValue = parameterMap.get(key);sb.append(key).append("=").append(keyValue);if (i < keyList.size() - 1) {sb.append("&");}}return sb.toString();}public static boolean verify(Map<String, String> parameterMap, String sign) {String localSign = sign(parameterMap);if (localSign != null) {return localSign.equals(sign);}return false;}public static void main(String[] args) throws UnsupportedEncodingException {String sign = "f527b7db45af077b88d45e0fe7318c64";Map<String, String> parameterMap = new HashMap<String, String>();parameterMap.put("limit", "10");parameterMap.put("hostName", "dz6225");parameterMap.put("sign", sign);//System.out.println(linkFileName(parameterMap));//System.out.println(filterParameter(parameterMap));System.out.println(sign(parameterMap));System.out.println(verify(parameterMap, sign));//System.out.println(DigestUtils.md5Hex("userId=287310&verifyCodeInfo={\"answerList\":[{\"submitUrl1\":\"\\/r\\/u\\/purchase.jsp?ln=4870_234043__0_&t1=16664&verifyCode=1&pftype=ChapterFee&t=qc6lm6gK%2BuKJ1Z2f5B5uHA%3D%3D&cm=M3020050&purl=%2Fr%2Fl%2Fr.jsp%3Faaa_flag%3D1%26cm%3DM3020050%26bid%3D353148106%26cid%3D353148146&cid=353148146&bid=353148106&h=1&layout=9\",\"PicUrl1\":\"\\/r\\/images\\/verification\\/1.png?ln=4870_234043__0_&t1=16664&cm=M3020050\"},{\"submitUrl2\":\"\\/r\\/u\\/purchase.jsp?ln=4870_234043__0_&t1=16664&verifyCode=3&pftype=ChapterFee&t=qc6lm6gK%2BuKJ1Z2f5B5uHA%3D%3D&cm=M3020050&purl=%2Fr%2Fl%2Fr.jsp%3Faaa_flag%3D1%26cm%3DM3020050%26bid%3D353148106%26cid%3D353148146&cid=353148146&bid=353148106&h=1&layout=9\",\"PicUrl2\":\"\\/r\\/images\\/verification\\/3.png?ln=4870_234043__0_&t1=16664&cm=M3020050\"},{\"PicUrl3\":\"\\/r\\/images\\/verification\\/9.png?ln=4870_234043__0_&t1=16664&cm=M3020050\",\"submitUrl3\":\"\\/r\\/u\\/purchase.jsp?ln=4870_234043__0_&t1=16664&verifyCode=9&pftype=ChapterFee&t=qc6lm6gK%2BuKJ1Z2f5B5uHA%3D%3D&cm=M3020050&purl=%2Fr%2Fl%2Fr.jsp%3Faaa_flag%3D1%26cm%3DM3020050%26bid%3D353148106%26cid%3D353148146&cid=353148146&bid=353148106&h=1&layout=9\"},{\"PicUrl4\":\"\\/r\\/images\\/verification\\/5.png?ln=4870_234043__0_&t1=16664&cm=M3020050\",\"submitUrl4\":\"\\/r\\/u\\/purchase.jsp?ln=4870_234043__0_&t1=16664&verifyCode=5&pftype=ChapterFee&t=qc6lm6gK%2BuKJ1Z2f5B5uHA%3D%3D&cm=M3020050&purl=%2Fr%2Fl%2Fr.jsp%3Faaa_flag%3D1%26cm%3DM3020050%26bid%3D353148106%26cid%3D353148146&cid=353148146&bid=353148106&h=1&layout=9\"}],\"verifyCodePicUrl\":\"\\/r\\/vs\\/avi?ln=4870_234043__0_&t1=16664&pftype=ChapterFee&cm=M3020050&picw=120&pich=32&picfs=16&pictd=1439794609599&layout=9\"}}&key=ddbc9169242b479da867eb24efb735d1".getBytes("utf-8")));}}