java 把请求数据转换成map数据

public static Map<String, Object> handleParamToMap( 
HttpServletRequest request) { 
Map<String, Object> map = new HashMap<>(); 
for (Entry<String, String[]> entry : request.getParameterMap() 
.entrySet()) {//遍历请求参数 
String[] arr = entry.getValue();//获得请求参数的值（数组） 
String result = ""; 
if (null != arr && arr.length > 0) { 
for (int i = 0; i < arr.length; i++) { 
result += arr[i]; 
if (i < arr.length - 1) { 
result += ",";//有多个值用逗号隔开 
} 
} 
map.put(entry.getKey(), result);//给Map赋值 
} 
} 
return map; 
}