select 2个联动
1.js
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//id|->{s1;[]}var dicObject = new ActiveXObject("Scripting.Dictionary");//id|->s1var dicId = new ActiveXObject("Scripting.Dictionary");//id中2:->se1 ..dicSonvar dicRele = new ActiveXObject("Scripting.Dictionary");//空dicvar dicNull = new ActiveXObject("Scripting.Dictionary");//将array[Dictionary] 显示到 select中function toOption(selectId,tempDic,valueChecked){var select = document.getElementById(selectId);var array = (new VBArray(tempDic.Keys())).toArray();var count = array.length;for(var i=0;i<count;i++){var obj = document.createElement("OPTION");obj.value = array[i];obj.text = tempDic(array[i]);if(array[i]==valueChecked)obj.selected = "selected";select.add(obj);}}//清空select中的optionfunction removeOption(select){var count = select.options.length;for(var i=count-1;i>=0;i--){select.options.remove(i);}}//去掉两边的括号如[xxxx]--->xxxxfunction removeBrackets(string){var seltemp = string.slice(1,string.length-1);//去掉[]return seltemp;}//分离出 Object 到 arrayfunction separateObject(string){var arrsuper = string.split(","); //每个对象一个项return arrsuper;}//id|->{s1;[]} dicObject ---调用function getDicObject(array){var count = array.length;for(var i=0;i<count;i++){var arrString = array[i]; //每一项对象var arrsuper = arrString.split("|->");var index = arrsuper.length;if(index>=2) //id 后面dicObject.add(trem(arrsuper[0]),trem(arrsuper[1]));else if(index==1)dicObject(trem(arrsuper[0]),"");}}//id|->s1 ---显示function getDicId(array){var count = array.length;for(var i=0;i<count;i++){var arrString = array[i]; //每一项对象var arrsuper = arrString.split("|->");if(arrsuper.length<1)continue;var temp = removeBrackets(arrsuper[1]);var temparr = temp.split(";");if(temparr.length>0)dicId.add(trem(arrsuper[0]),trem(temparr[0]));}}//id|->{s1;[]}中2:->se1 array={s1;[2:->se1#1:->se1#]} ---调用function getDicSon(string){//id|->{s1;[]}中2:->se1var dicSon = new ActiveXObject("Scripting.Dictionary");var temp = removeBrackets(string);var temparr = temp.split(";");if(temparr.length<2)return;var newtemp = removeBrackets(temparr[1]); //son objectvar newtemparr = newtemp.split("#");var newcount = newtemparr.length;for(var j=0;j<newcount;j++){var newarrString = newtemparr[j]; //每一项对象的集合var newarrsuper = newarrString.split(":->");if(newarrsuper.length<1)continue;if(newarrsuper.length>1)dicSon.add(trem(newarrsuper[0]),trem(newarrsuper[1]));}return dicSon;}//id中2:->se1 ..dicSonfunction getDicRele(array){if(dicObject.Count<1)getDicObject(array);var dicObjectKeys = (new VBArray(dicObject.Keys())).toArray();var count = dicObjectKeys.length;for(var i=0;i<count;i++){var arrString = dicObject(trem(dicObjectKeys[i])); //valuevar sonDic = getDicSon(arrString);dicRele.add(trem(dicObjectKeys[i]),sonDic);}}//function showAll(selectValue,se1,se2){var string = removeBrackets(list);var array = separateObject(string); //objectif(selectValue==null||trem(selectValue)==""){getDicId(array);getDicRele(array);var a = (new VBArray(dicRele.Items())).toArray();toOption(se1,dicId);toOption(se2,a[0]);}else{removeOption(document.getElementById(se1));removeOption(document.getElementById(se2));toOption(se1,dicId,selectValue);toOption(se2,dicRele(trem(selectValue)));}}function selectOnChange(tag,se1,se2){var value = tag.value;showAll(value,se1,se2);}//去掉空格(两边)function trem(str){var str1 = rtrem(str);var string = ltrem(str1);return string;}//去掉左边空格function ltrem(str){var count = str.length;var seltemp = "";for(var i=0;i<count;i++){var s = str.charAt(i);if(s!=" "){seltemp = str.slice(i,count);break;}}return seltemp;}//去掉右边空格function rtrem(str){var count = str.length;var seltemp = "";for(var i=count-1;i>=0;i--){var s = str.charAt(i);if(s!=" "){seltemp = str.slice(0,i+1);break;}}return seltemp;}?
2.html
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<script type="text/javascript" src="select/select2.js"></script><script type="text/javascript"> list = "${list}";function onload(){ showAll(null,"se1","se2");}</script>......<body onload="onload()">...... <select id="se1" onchange="selectOnChange(this,'se1','se2')"> </select> <select id="se2"> </select>?
3.java---显示的
public class SelectEntity {private Integer id;private String name;private Set<SelectEntity> selectEntity;。。。@Overridepublic String toString() {// TODO Auto-generated method stubString str = "";str += this.id+"|->{"+this.name+";[";for(SelectEntity se:this.selectEntity){str += se.getId()+":->";str += se.name;str += "#";}str += "]}";return str;}?类
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