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Js implements the ArrayList function and js implements the arraylist function.
1. Summary of the ArrayList Method
Constructor abstract ArrayList () constructs an empty list with an initial capacity of 10. ArrayList (Collection <? Extends E> c) constructs a list of elements that contain the specified collection. These elements are arranged in the order returned by the collection iterator. ArrayList (int initialCapacity) constructs an empty list with the specified initial capacity. Method abstract booleanadd (E e) adds the specified element to the end of this list. Voidadd (int index, E element) inserts the specified element into the specified position in this list. BooleanaddAll (Collection <? Extends E> c) add all elements in the collection to the end of the list in the order returned by the iterator of the specified collection. BooleanaddAll (int index, Collection <? Extends E> c) inserts all elements in the specified collection into the list starting from the specified position. Voidclear () removes all elements from this list. Objectclone () returns a superficial copy of The ArrayList instance. Booleancontains (Object o) returns true if the list contains the specified element. VoidensureCapacity (int minCapacity) increases the capacity of this ArrayList instance if necessary to ensure that it can accommodate at least the number of elements specified by the minimum capacity parameter. Eget (int index) returns the element at the specified position in this list. IntindexOf (Object o) returns the index of the specified element that appears for the first time in this list, or-1 if this list does not contain elements. BooleanisEmpty () if there is no element in this list, true intlastIndexOf (Object o) is returned to the index of the last specified element in this list, or if this list does not contain an index, -1 is returned. Eremove (int index) removes the elements at the specified position in this list. Booleanremove (Object o) removes the specified Element (if any) that appears for the first time in this list ). Protected voidremoveRange (int fromIndex, int toIndex) removes all elements in the list between fromIndex (included) and toIndex (excluded. Eset (int index, E element) replaces the element at the specified position in this list with the specified element. Intsize () returns the number of elements in this list. Object [] toArray () returns an array containing all elements in the list in the appropriate order (from the first to the last element. <T> T [] toArray (T [] a) returns an array containing all the elements in the list in the appropriate order (from the first to the last element; the runtime type of the returned array is the runtime type of the specified array. VoidtrimToSize (): Adjust the capacity of the ArrayList instance to the current size of the list.
<Html> <script type = "text/javascript" src = "json. js "> </script>
Call the java function in js to return the arraylist type. How can I convert it to the array type in js?Js only has the var type, regardless of the Low-hour group or other types similar to the String or int type in java. If js wants to obtain the array in ava, use json.
Convert a set to json in java code:
@ RequestMapping (value = "/slick/home ")
Public void homePage (HttpServletResponse response) throws IOException {
String json = null;
Response. setContentType ("application/json ");
PrintWriter out = response. getWriter ();
Gson gson = new GsonBuilder (). serializeNulls (). setDateFormat (DateFormat. LONG)
. SetPrettyPrinting (). setVersion (1.0). create ();
List <Integer> list = new ArrayList <Integer> ();
For (int I = 0; I <10; I ++ ){
List. add (I );
}
JSONArray ja = JSONArray. fromObject (mes );
Json = gson. toJson (ja. toString ());
Out. print (json );
}
Code parsed in js:
Function tested (){
JQuery. getJSON ("$ {path}/slick/home? Time = "+ new Date (). getTime (),
Function (items ){
Var output = [];
Output. push ('<option value = "">-select-</option> ');
JQuery. each (items, function (I, item ){
Output. push ('<option value = "' + item + '">' + item + '</option> ');
});
('{'{Nextunit}.html (output. join (''));
Certificate ('{'{nextunit}.css ('display ','');
});
}
Hope to help you.
How can I read a java ArrayList array as a string in JS Code?Use the c: foreach label to read data.
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