GeoHash算法
AES加密算法
This commit is contained in:
lixiangrong
parent
c884479cf2
commit
854b917a9b
@ -1,24 +1,13 @@
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package osc.git.eh3.test;
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import java.lang.annotation.Annotation;
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import java.lang.reflect.Method;
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import java.math.BigDecimal;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.Arrays;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.HashSet;
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import java.util.Set;
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import com.caucho.hessian.client.HessianProxyFactory;
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import net.sf.ezmorph.bean.MorphDynaBean;
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import net.sf.json.JSONArray;
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import net.sf.json.JSONObject;
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import osc.git.eh3.readlogs.IReadLogs;
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import osc.git.eh3.utils.AESEncrypter;
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public class TestCode {
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@ -167,11 +156,30 @@ public class TestCode {
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// SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
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// System.out.println(sdf.format(dd));
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JSONObject groupAdxs = JSONObject.fromObject("{\"4ebdb328-5d4b-42e6-80c3-a6aaaecdcea1\":[\"1e03319c-425d-4a17-a6bf-eeec2f48db29\",\"1fed4171-9925-4834-aa7b-9b4d3a58841b\",\"ce579246-e707-4cb9-b982-88cad7944b92\"],\"9262cbe8-a9dc-4f4e-888b-cf3ffe65defd\":\"ce579246-e707-4cb9-b982-88cad7944b92\"}");
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Set<String> keySet = groupAdxs.keySet();
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for (Object object : keySet) {
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System.out.println(groupAdxs.get(object).getClass().isArray());
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}
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// JSONObject groupAdxs = JSONObject.fromObject("{\"4ebdb328-5d4b-42e6-80c3-a6aaaecdcea1\":[\"1e03319c-425d-4a17-a6bf-eeec2f48db29\",\"1fed4171-9925-4834-aa7b-9b4d3a58841b\",\"ce579246-e707-4cb9-b982-88cad7944b92\"],\"9262cbe8-a9dc-4f4e-888b-cf3ffe65defd\":\"ce579246-e707-4cb9-b982-88cad7944b92\"}");
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// Set<String> keySet = groupAdxs.keySet();
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// for (Object object : keySet) {
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// System.out.println(groupAdxs.get(object).getClass().isArray());
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// }
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// System.out.println(UUID.randomUUID().toString());
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// System.out.println(new Integer(0x11));
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// System.out.println(Integer.toBinaryString(30000));
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// System.out.println(Integer.valueOf("11", 16));
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// System.out.println(Integer.valueOf("11", 2));
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System.out.println(AESEncrypter.encrypt("lixiangrong"));
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System.out.println(AESEncrypter.decrypt(AESEncrypter.encrypt("lixiangrong")));
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System.out.println(AESEncrypter.encrypt("lixiangrong","ca048b18cac58865a8"));
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System.out.println(AESEncrypter.decrypt(AESEncrypter.encrypt("lixiangrong","ca048b18cac58865a8"),"ca048b18cac58865a8"));
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// byte[] bytes = "lixiangrong".getBytes();
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// for (int i = 0; i < bytes.length; i++) {
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// System.out.println(bytes[i]);
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// }
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}
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public static Long parseDate(String s) {
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29
src/main/java/osc/git/eh3/test/TestGeoHash.java
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29
src/main/java/osc/git/eh3/test/TestGeoHash.java
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@ -0,0 +1,29 @@
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package osc.git.eh3.test;
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import osc.git.eh3.utils.CommonUtils;
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import osc.git.eh3.utils.GeoHash;
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public class TestGeoHash {
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public static void main(String[] args) {
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double lon1 = 109.0145193757;
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double lat1 = 34.236080797698;
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double lon2 = 108.9644583556;
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double lat2 = 34.286439088548;
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double dist;
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String geocode;
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dist = CommonUtils.getDistance(lon1, lat1, lon2, lat2);
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System.out.println("两点相距：" + dist + " 米");
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geocode = GeoHash.encode(lat1, lon1);
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System.out.println("当前位置编码：" + geocode);
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geocode = GeoHash.encode(lat2, lon2);
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System.out.println("远方位置编码：" + geocode);
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System.out.println(GeoHash.decode("s6q8mc6nbupd")[0]+" "+GeoHash.decode("s6q8mc6nbupd")[1]);
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}
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}
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135
src/main/java/osc/git/eh3/utils/AESEncrypter.java
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135
src/main/java/osc/git/eh3/utils/AESEncrypter.java
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@ -0,0 +1,135 @@
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package osc.git.eh3.utils;
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import java.security.InvalidAlgorithmParameterException;
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import java.security.InvalidKeyException;
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import java.security.NoSuchAlgorithmException;
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import java.security.SecureRandom;
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import java.security.spec.AlgorithmParameterSpec;
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import javax.crypto.BadPaddingException;
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import javax.crypto.Cipher;
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import javax.crypto.IllegalBlockSizeException;
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import javax.crypto.KeyGenerator;
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import javax.crypto.NoSuchPaddingException;
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import javax.crypto.SecretKey;
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import javax.crypto.spec.IvParameterSpec;
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public class AESEncrypter {
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private static byte[] iv = new byte[] { 21, 22, 50, 44, -16, 124, -40, -114, -11, -40, 37, 23, -33, 23, -33, 75 };
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private static String defalut_key = "defalut_keydefalut_key";
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/**
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* 加密
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*
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* @param content
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* 要加密的内容
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* @return 加密后的32位字符串
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*/
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public static String encrypt(String content) {
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return encrypt(content, defalut_key);
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}
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/**
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* 解密
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*
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* @param content
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* AES密文
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* @return 解密后的内容
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*/
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public static String decrypt(String content) {
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return decrypt(content, defalut_key);
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}
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/**
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* 加密
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*
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* @param content
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* 要加密的内容
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* @param key
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* 秘钥
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* @return 加密后的32位字符串
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*/
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public static String encrypt(String content, String key) {
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String str = "";
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try {
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KeyGenerator kgen = KeyGenerator.getInstance("AES");
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kgen.init(128, new SecureRandom(key.getBytes()));
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AlgorithmParameterSpec paramSpec = new IvParameterSpec(iv);
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SecretKey skey = kgen.generateKey();
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Cipher ecipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
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ecipher.init(Cipher.ENCRYPT_MODE, skey, paramSpec);
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str = asHex(ecipher.doFinal(content.getBytes()));
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} catch (BadPaddingException e) {
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e.printStackTrace();
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (InvalidAlgorithmParameterException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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}
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return str;
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}
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/**
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* 解密
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*
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* @param content
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* AES密文
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* @param key
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* 秘钥
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* @return 解密后的内容
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*/
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public static String decrypt(String content, String key) {
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try {
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KeyGenerator kgen = KeyGenerator.getInstance("AES");
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kgen.init(128, new SecureRandom(key.getBytes()));
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AlgorithmParameterSpec paramSpec = new IvParameterSpec(iv);
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SecretKey skey = kgen.generateKey();
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Cipher dcipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
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dcipher.init(Cipher.DECRYPT_MODE, skey, paramSpec);
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return new String(dcipher.doFinal(asBin(content)));
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} catch (BadPaddingException e) {
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e.printStackTrace();
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (InvalidAlgorithmParameterException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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}
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return "";
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}
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private static String asHex(byte buf[]) {
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StringBuffer strbuf = new StringBuffer(buf.length * 2);
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int i;
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for (i = 0; i < buf.length; i++) {
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if (((int) buf[i] & 0xff) < 0x10)
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strbuf.append("0");
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strbuf.append(Long.toString((int) buf[i] & 0xff, 16));
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}
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return strbuf.toString();
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}
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private static byte[] asBin(String src) {
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if (src.length() < 1)
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return null;
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byte[] encrypted = new byte[src.length() / 2];
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for (int i = 0; i < src.length() / 2; i++) {
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int high = Integer.parseInt(src.substring(i * 2, i * 2 + 1), 16);
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int low = Integer.parseInt(src.substring(i * 2 + 1, i * 2 + 2), 16);
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encrypted[i] = (byte) (high * 16 + low);
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}
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return encrypted;
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}
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}
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@ -12,6 +12,18 @@ import java.util.Map;
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import javax.servlet.http.HttpServletRequest;
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public class CommonUtils {
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private static double EARTH_RADIUS = 6371; // 默认地球半径(单位km)
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/**
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* 转化为弧度(rad)
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*
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* @param d
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* @return
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*/
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private static double rad(double d) {
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return d * Math.PI / 180.0;
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}
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/**
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* 对象转换成另一个类对象
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*
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@ -149,4 +161,57 @@ public class CommonUtils {
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}
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return ipAddress;
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}
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/**
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* 计算经纬度点对应正方形4个点的坐标
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*
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* @param longitude
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* @param latitude
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* @param distance
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* @return
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*/
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public static Map<String, double[]> returnLLSquarePoint(double longitude, double latitude, double distance) {
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Map<String, double[]> squareMap = new HashMap<String, double[]>();
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// 计算经度弧度,从弧度转换为角度
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double dLongitude = 2 * (Math.asin(Math.sin(distance / (2 * EARTH_RADIUS)) / Math.cos(Math.toRadians(latitude))));
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dLongitude = Math.toDegrees(dLongitude);
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// 计算纬度角度
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double dLatitude = distance / EARTH_RADIUS;
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dLatitude = Math.toDegrees(dLatitude);
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// 正方形
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double[] leftTopPoint = { latitude + dLatitude, longitude - dLongitude };
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double[] rightTopPoint = { latitude + dLatitude, longitude + dLongitude };
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double[] leftBottomPoint = { latitude - dLatitude, longitude - dLongitude };
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double[] rightBottomPoint = { latitude - dLatitude, longitude + dLongitude };
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squareMap.put("leftTopPoint", leftTopPoint);
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squareMap.put("rightTopPoint", rightTopPoint);
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squareMap.put("leftBottomPoint", leftBottomPoint);
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squareMap.put("rightBottomPoint", rightBottomPoint);
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return squareMap;
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}
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/**
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* 基于googleMap中的算法得到两经纬度之间的距离,计算精度与谷歌地图的距离精度差不多，相差范围在0.2米以下
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*
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* @param lon1
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* 第一点的精度
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* @param lat1
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* 第一点的纬度
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* @param lon2
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* 第二点的精度
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* @param lat3
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* 第二点的纬度
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* @return 返回的距离，单位m
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*/
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public static double getDistance(double lon1, double lat1, double lon2, double lat2) {
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double radLat1 = rad(lat1);
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double radLat2 = rad(lat2);
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double a = radLat1 - radLat2;
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double b = rad(lon1) - rad(lon2);
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double s = 2
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* Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2) + Math.cos(radLat1) * Math.cos(radLat2) * Math.pow(Math.sin(b / 2), 2)));
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s = s * EARTH_RADIUS * 1000;
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s = Math.round(s * 10000) / 10000;
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return s;
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}
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}
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116
src/main/java/osc/git/eh3/utils/GeoHash.java
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116
src/main/java/osc/git/eh3/utils/GeoHash.java
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package osc.git.eh3.utils;
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import java.util.BitSet;
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import java.util.HashMap;
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/**
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* GeoHash算法实现
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*
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* @author lixiangrong
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*
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* 1、GeoHash将经纬度转换成一个可以排序，可以比较的字符串编码
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* 2、GeoHash表示的并不是一个点，而是一个矩形区域。比如编码wx4g0ec19，它表示的是一个矩形区域
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*
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*/
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public class GeoHash {
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private static int numbits = 6 * 5;
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final static char[] digits = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'j', 'k', 'm', 'n',
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'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z' };
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final static HashMap<Character, Integer> lookup = new HashMap<Character, Integer>();
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static {
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int i = 0;
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for (char c : digits)
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lookup.put(c, i++);
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}
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public static double[] decode(String geohash) {
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StringBuilder buffer = new StringBuilder();
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for (char c : geohash.toCharArray()) {
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int i = lookup.get(c) + 32;
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buffer.append(Integer.toString(i, 2).substring(1));
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}
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BitSet lonset = new BitSet();
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BitSet latset = new BitSet();
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// even bits
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int j = 0;
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for (int i = 0; i < numbits * 2; i += 2) {
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boolean isSet = false;
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if (i < buffer.length())
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isSet = buffer.charAt(i) == '1';
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lonset.set(j++, isSet);
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}
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// odd bits
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j = 0;
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for (int i = 1; i < numbits * 2; i += 2) {
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boolean isSet = false;
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if (i < buffer.length())
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isSet = buffer.charAt(i) == '1';
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latset.set(j++, isSet);
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}
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// 中国地理坐标：东经73°至东经135°，北纬4°至北纬53°
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double lon = decode(lonset, 70, 140);
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double lat = decode(latset, 0, 60);
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return new double[] { lat, lon };
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}
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private static double decode(BitSet bs, double floor, double ceiling) {
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double mid = 0;
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for (int i = 0; i < bs.length(); i++) {
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mid = (floor + ceiling) / 2;
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if (bs.get(i))
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floor = mid;
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else
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ceiling = mid;
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}
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return mid;
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}
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public static String encode(double lat, double lon) {
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BitSet latbits = getBits(lat, 0, 60);
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BitSet lonbits = getBits(lon, 70, 140);
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StringBuilder buffer = new StringBuilder();
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for (int i = 0; i < numbits; i++) {
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buffer.append((lonbits.get(i)) ? '1' : '0');
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buffer.append((latbits.get(i)) ? '1' : '0');
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}
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return base32(Long.parseLong(buffer.toString(), 2));
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}
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private static BitSet getBits(double lat, double floor, double ceiling) {
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BitSet buffer = new BitSet(numbits);
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for (int i = 0; i < numbits; i++) {
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double mid = (floor + ceiling) / 2;
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if (lat >= mid) {
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buffer.set(i);
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floor = mid;
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} else {
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ceiling = mid;
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}
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}
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return buffer;
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}
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private static String base32(long i) {
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char[] buf = new char[65];
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int charPos = 64;
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boolean negative = (i < 0);
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if (!negative)
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i = -i;
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while (i <= -32) {
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buf[charPos--] = digits[(int) (-(i % 32))];
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i /= 32;
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}
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buf[charPos] = digits[(int) (-i)];
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if (negative)
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buf[--charPos] = '-';
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return new String(buf, charPos, (65 - charPos));
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}
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}
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@ -25,7 +25,8 @@
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<property name="enableSubPackages" value="true"/>
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</javaClientGenerator>
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<table tableName="dsp_t_ad_place_informationflow" domainObjectName="AdPlaceInformationFlowModel" enableCountByExample="true" enableUpdateByExample="true" enableDeleteByExample="true" enableSelectByExample="true" selectByExampleQueryId="true"></table>
|
||||
<table tableName="dsp_t_coordinate" domainObjectName="CoordinateModel" enableCountByExample="true" enableUpdateByExample="true" enableDeleteByExample="true" enableSelectByExample="true" selectByExampleQueryId="true"></table>
|
||||
<table tableName="dsp_t_group_coordinate" domainObjectName="GroupCoordinateModel" enableCountByExample="true" enableUpdateByExample="true" enableDeleteByExample="true" enableSelectByExample="true" selectByExampleQueryId="true"></table>
|
||||
</context>
|
||||
|
||||
</generatorConfiguration>
|
||||
Loading…
Reference in New Issue
Block a user