add code annotation

warehouseutils/src/main/java/com/gmei/utils/DateUtils.java

@@ -3,6 +3,15 @@ package com.gmei.utils;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 
+/**
+ * ClassName: com.gmei.utils.DateUtils
+ * Function: TODO ADD FUNCTION.
+ * Reason: 日期工具类
+ * Date: 2020-03-03 00:00:00
+ *
+ * @author sjxuwei
+ * @since JDK 1.8
+ */
 public class DateUtils {
     public static long changeDateToLong(String time, SimpleDateFormat simpleDateFormat) throws ParseException {
         return simpleDateFormat.parse(time).getTime();

warehouseutils/src/main/java/com/gmei/utils/GmKafkaConsumer.java

@@ -9,6 +9,15 @@ import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.Properties;
 
+/**
+ * ClassName: com.gmei.utils.GmKafkaConsumer
+ * Function: TODO ADD FUNCTION.
+ * Reason: 定义kafka数据源，必须定制schama
+ * Date: 2020-03-03 00:00:00
+ *
+ * @author sjxuwei
+ * @since JDK 1.8
+ */
 public class GmKafkaConsumer {
     private String topic;
     private Properties prop;

warehouseutils/src/main/java/com/gmei/utils/JDBCUtils.java

@@ -5,6 +5,15 @@ import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.sql.Statement;
 
+/**
+ * ClassName: com.gmei.utils.JDBCUtils
+ * Function: TODO ADD FUNCTION.
+ * Reason: jdbc工具类
+ * Date: 2020-03-03 00:00:00
+ *
+ * @author sjxuwei
+ * @since JDK 1.8
+ */
 public class JDBCUtils {
     synchronized public static void close(Connection connection, Statement statement, ResultSet resultSet) throws SQLException {
         if(connection != null){

warehouseutils/src/main/java/com/gmei/utils/StringUtils.java

@@ -8,89 +8,24 @@ import java.security.NoSuchAlgorithmException;
 import java.util.zip.GZIPInputStream;
 import java.util.zip.GZIPOutputStream;
 
+/**
+ * ClassName: com.gmei.utils.StringUtils
+ * Function: TODO ADD FUNCTION.
+ * Reason: String工具类
+ * Date: 2020-03-03 00:00:00
+ *
+ * @author sjxuwei
+ * @since JDK 1.8
+ */
 public class StringUtils {
     /**
-     * 使用gzip进行压缩
-     */
-    public static String gzip(String primStr) {
-        if (primStr == null || primStr.length() == 0) {
-            return primStr;
-        }
-
-        ByteArrayOutputStream out = new ByteArrayOutputStream();
-
-        GZIPOutputStream gzip = null;
-        try {
-            gzip = new GZIPOutputStream(out);
-            gzip.write(primStr.getBytes());
-        } catch (IOException e) {
-            e.printStackTrace();
-        } finally {
-            if (gzip != null) {
-                try {
-                    gzip.close();
-                } catch (IOException e) {
-                    e.printStackTrace();
-                }
-            }
-        }
-
-
-        return new sun.misc.BASE64Encoder().encode(out.toByteArray());
-    }
-
-    /**
-     * <p>Description:使用gzip进行解压缩</p>
+     * Function: TODO ADD FUNCTION.
+     * Reason: 获得数据md5
+     * Date: 2020-03-03 00:00:00
      *
-     * @param compressedStr
-     * @return
+     * @author sjxuwei
+     * @since JDK 1.8
      */
-    public static String gunzip(String compressedStr) {
-        if (compressedStr == null) {
-            return null;
-        }
-
-        ByteArrayOutputStream out = new ByteArrayOutputStream();
-        ByteArrayInputStream in = null;
-        GZIPInputStream ginzip = null;
-        byte[] compressed = null;
-        String decompressed = null;
-        try {
-            compressed = new sun.misc.BASE64Decoder().decodeBuffer(compressedStr);
-            in = new ByteArrayInputStream(compressed);
-            ginzip = new GZIPInputStream(in);
-
-            byte[] buffer = new byte[1024];
-            int offset = -1;
-            while ((offset = ginzip.read(buffer)) != -1) {
-                out.write(buffer, 0, offset);
-            }
-            decompressed = out.toString();
-        } catch (IOException e) {
-            e.printStackTrace();
-        } finally {
-            if (ginzip != null) {
-                try {
-                    ginzip.close();
-                } catch (IOException e) {
-                }
-            }
-            if (in != null) {
-                try {
-                    in.close();
-                } catch (IOException e) {
-                }
-            }
-            if (out != null) {
-                try {
-                    out.close();
-                } catch (IOException e) {
-                }
-            }
-        }
-        return decompressed;
-    }
-
     public static String getStringMd5(byte[] bytes) throws NoSuchAlgorithmException {
         MessageDigest md5 = MessageDigest.getInstance("MD5");
         byte[] digest = md5.digest(bytes);
@@ -105,11 +40,26 @@ public class StringUtils {
         return hexValue.toString();
     }
 
+    /**
+     * Function: TODO ADD FUNCTION.
+     * Reason: 判断对象是否为NULL
+     * Date: 2020-03-03 00:00:00
+     *
+     * @author sjxuwei
+     * @since JDK 1.8
+     */
     public static boolean isObjectNull(Object object){
         return (object == null);
     }
 
-
+    /**
+     * Function: TODO ADD FUNCTION.
+     * Reason: 将为NULL的对象转换为长度为0的字符串
+     * Date: 2020-03-03 00:00:00
+     *
+     * @author sjxuwei
+     * @since JDK 1.8
+     */
     public static String changeNullTolength0(Object object){
         if(object == null){
             return  "";
@@ -118,6 +68,14 @@ public class StringUtils {
         }
     }
 
+    /**
+     * Function: TODO ADD FUNCTION.
+     * Reason: 将为NULL的对象转换成double类型
+     * Date: 2020-03-03 00:00:00
+     *
+     * @author sjxuwei
+     * @since JDK 1.8
+     */
     public static Double isNullToDouble(Object object){
         if(object == null){
             return 0.0;
@@ -130,6 +88,14 @@ public class StringUtils {
         }
     }
 
+    /**
+     * Function: TODO ADD FUNCTION.
+     * Reason: 从参数中获取第一个不为NULL并且长度大于0的字符串，否则返回长度为0的字符串
+     * Date: 2020-03-03 00:00:00
+     *
+     * @author sjxuwei
+     * @since JDK 1.8
+     */
     public static String getNotNull(String... str){
         for(String s : str){
             if(s != null && s.length() > 0){
@@ -139,7 +105,14 @@ public class StringUtils {
         return "";
     }
 
-
+    /**
+     * Function: TODO ADD FUNCTION.
+     * Reason: 如果参数1的长度为0则取第二个参数的值
+     * Date: 2020-03-03 00:00:00
+     *
+     * @author sjxuwei
+     * @since JDK 1.8
+     */
     public static String changeLength0toOther(String str1,String str2){
         if(str1.length() == 0){
             return str2;