package openresty;import java.io.IOException;
import java.security.GeneralSecurityException;
import java.security.MessageDigest;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.TreeMap;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplication
public class OpenrestySign {public static void main(String[] args) throws IOException {OpenrestySign.run(OpenrestySign.class, args);HashMap<String,String> params = new HashMap<String,String>();params.put("key", "1");params.put("a", "1");params.put("c", "w");params.put("b", "2");long time = new Date().getTime();params.put("time", "" + time);System.out.println(time);String sign = getSignature(params,"123456");System.out.println(sign);params.put("sign", sign);String resp = HttpsUtil.doGet("http://10.11.0.215/sign",params);System.out.println(resp);}/*** 签名生成算法* @param HashMap<String,String> params 请求参数集，所有参数必须已转换为字符串类型* @param String secret 签名密钥* @return 签名* @throws IOException*/public static String getSignature(HashMap<String,String> params, String secret) throws IOException{// 先将参数以其参数名的字典序升序进行排序Map<String, String> sortedParams = new TreeMap<String, String>(params);Set<Entry<String, String>> entrys = sortedParams.entrySet();// 遍历排序后的字典，将所有参数按"key=value"格式拼接在一起StringBuilder basestring = new StringBuilder();for (Entry<String, String> param : entrys) {if(basestring.length() != 0){basestring.append("&");}basestring.append(param.getKey()).append("=").append(param.getValue());}basestring.append("&");basestring.append(secret);System.out.println("basestring="+basestring);// 使用MD5对待签名串求签byte[] bytes = null;try {MessageDigest md5 = MessageDigest.getInstance("MD5");bytes = md5.digest(basestring.toString().getBytes("UTF-8"));} catch (GeneralSecurityException ex) {throw new IOException(ex);}String strSign = new String(bytes);System.out.println("strSign="+strSign);// 将MD5输出的二进制结果转换为小写的十六进制StringBuilder sign = new StringBuilder();for (int i = 0; i < bytes.length; i++) {String hex = Integer.toHexString(bytes[i] & 0xFF);if (hex.length() == 1) {sign.append("0");}sign.append(hex);}return sign.toString();}
}

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>openresty</groupId><artifactId>openresty</artifactId><version>0.0.1-SNAPSHOT</version><packaging>jar</packaging><name>openresty</name><url>http://maven.apache.org</url><properties><java.version>1.8</java.version><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.0.0.RELEASE</version>
</parent><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency>
</dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins>
</build><repositories><repository><id>repository.spring.release</id><name>Spring GA Repository</name><url>http://repo.spring.io/release</url></repository>
</repositories></project>