further wrote javadoc

APIJSONORM/src/main/java/apijson/StringUtil.java

@@ -111,11 +111,13 @@ public class StringUtil {
 	public static String getString(Object[] array, String split) {
 		return getString(array, split, false);
 	}
+	//CS304 Issue link: https://github.com/Tencent/APIJSON/issues/182
 	/**获取string,为null则返回""
-	 * @param array
-	 * @param split
-	 * @param ignoreEmptyItem
-	 * @return
+	 * @param array -the str array given
+	 * @param split -the token used to split
+	 * @param ignoreEmptyItem -whether to ignore empty item or not
+	 * @return {@link #getString(Object[], String, boolean)}
+	 * <p>Here we replace the simple "+" way of concatenating with Stringbuilder 's append</p>
 	 */
 	public static String getString(Object[] array, String split, boolean ignoreEmptyItem) {
 		StringBuilder s = new StringBuilder("");
@@ -530,10 +532,13 @@ public class StringUtil {
 	public static String getNumber(String s) {
 		return getNumber(s, false);
 	}
+
+	//CS304 Issue link: https://github.com/Tencent/APIJSON/issues/182
 	/**去掉string内所有非数字类型字符
-	 * @param s
+	 * @param s -string passed in
 	 * @param onlyStart 中间有非数字时只获取前面的数字
-	 * @return
+	 * @return limit String
+	 * <p>Here we replace the simple "+" way of concatenating with Stringbuilder 's append</p>
 	 */
 	public static String getNumber(String s, boolean onlyStart) {
 		if (isNotEmpty(s, true) == false) {
@@ -631,10 +636,12 @@ public class StringUtil {
 	public static String getPrice(String price) {
 		return getPrice(price, PRICE_FORMAT_DEFAULT);
 	}
+	//CS304 Issue link: https://github.com/Tencent/APIJSON/issues/182
 	/**获取价格，保留两位小数
-	 * @param price
+	 * @param price -price passed in
 	 * @param formatType 添加单位（元）
-	 * @return
+	 * @return limit String
+	 * <p>Here we replace the simple "+" way of concatenating with Stringbuilder 's append</p>
 	 */
 	public static String getPrice(String price, int formatType) {
 		if (isNotEmpty(price, true) == false) {

APIJSONORM/src/main/java/apijson/orm/AbstractParser.java

@@ -1375,9 +1375,11 @@ public abstract class AbstractParser<T> implements Parser<T>, ParserCreator<T>,
 		queryResultMap.put(path, result);
 		//		}
 	}
+	//CS304 Issue link: https://github.com/Tencent/APIJSON/issues/48
 	/**根据路径获取值
-	 * @param valuePath
+	 * @param valuePath -the path need to get value
 	 * @return parent == null ? valuePath : parent.get(keys[keys.length - 1])
+	 * <p>use entrySet+getValue() to replace keySet+get() to enhance efficiency</p>
 	 */
 	@Override
 	public Object getValueByPath(String valuePath) {

APIJSONORM/src/main/java/apijson/orm/AbstractSQLConfig.java

@@ -1329,10 +1329,12 @@ public abstract class AbstractSQLConfig implements SQLConfig {
 	public Object getWhere(String key) {
 		return getWhere(key, false);
 	}
+	//CS304 Issue link: https://github.com/Tencent/APIJSON/issues/48
 	/**
-	 * @param key
-	 * @param exactMatch
+	 * @param key - the key passed in
+	 * @param exactMatch - whether it is exact match
 	 * @return
+	 * <p>use entrySet+getValue() to replace keySet+get() to enhance efficiency</p>
 	 */
 	@JSONField(serialize = false)
 	@Override
@@ -2273,11 +2275,13 @@ public abstract class AbstractSQLConfig implements SQLConfig {
 	public String getSetString() throws Exception {
 		return getSetString(getMethod(), getContent(), ! isTest());
 	}
+	//CS304 Issue link: https://github.com/Tencent/APIJSON/issues/48
 	/**获取SET
-	 * @param method
-	 * @param content
+	 * @param method -the method used
+	 * @param content -the content map
 	 * @return
-	 * @throws Exception 
+	 * @throws Exception
+	 * <p>use entrySet+getValue() to replace keySet+get() to enhance efficiency</p>
 	 */
 	@JSONField(serialize = false)
 	public String getSetString(RequestMethod method, Map<String, Object> content, boolean verifyName) throws Exception {