<html>
<head>
<script src="jquery.js" type="text/javascript"></script>
</head>
<body>
<input type="radio" name="riskLib" value="yjw1">楊軍威1<br/>
<input type="radio" name="riskLib" value="yjw2">楊軍威2<br/>
<input type="button" id="Btn_riskLib" />
<script type="text/javascript">
$(document).ready(function(){
$("#Btn_riskLib").bind("click",function(){
var id =$(":radio:checked").val();
if(id==null){
alert("請選擇一個!");
}else {
alert(id);
}
})
});
</script>
</body>
</html>
任務和聯系人是多對多關系，現在由聯系人id查詢出所有相關的任務
"SELECT t from Task t join t.contacters c where c.id = ?1"
比如：
一個老師教許多學生,一個學生被許多老師教,一個學生有好多書,同一種書被許多同學擁有.
要查詢教擁有書"a"的學生的老師!
Hql語句：
SELECT t FROM Teacher t join t.students s join s.books b where b.name = 'a'
解釋：t.students s中s并不是集合的意思,而是t的students對象的表別名,join t.students s這個hql,hibernate會翻譯成兩個表的內連接關系
錯誤寫法：
SELECT t FROM teacher t where t.students.books.name = 'a'
其實道理是很顯然的,t.students是一個Set,那么這個Set怎么可能有books這樣的屬性呢?同理books.name也不對,所以 使用表間連接并給出別名t.students s,此時的對象s才有books屬性,所以可以寫s.books b,最后使用b.name限制查詢b.name = 'a'.
另外一種寫法：
SELECT t FROM Teacher t,Student s,Book b where s.id in elements(t.students) and b.id in elements(s.books)
這種方法沒有出錯!不過這種方式要用子查詢!
public Map readXml() {
try {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = dbf.newDocumentBuilder();
Document doc;
InputStream stream = this.getClass().getResourceAsStream("/dictionaries.xml");
doc = builder.parse(stream);
Element root = doc.getDocumentElement();
NodeList list = root.getElementsByTagName("dictionary");
Map map = new LinkedHashMap();
ArrayList<String> types = new ArrayList<String>();
for (int i = 0; i < list.getLength(); i++) {
String key = list.item(i).getAttributes().getNamedItem("name").getNodeValue();
String value = list.item(i).getAttributes().getNamedItem("value").getNodeValue();
map.put(key, value);
}
return map;
} catch (Exception ex) {
return null;
}
}
dictionaries.xml文件如下：
<?xml version="1.0" encoding="UTF-8"?>
<dictionaries>
<dictionary name="項目類型" value="project.types" />
<dictionary name="項目狀態" value="project.statuses" />
<dictionary name="任務階段" value="task.stages" />
<dictionary name="任務狀態" value="task.statuses" />
<dictionary name="發生幾率" value="risk.probability" />
<dictionary name="危險程度" value="risk.harm" />
<dictionary name="風險狀態" value="risk.status" />
<dictionary name="預案類別" value="risk.type" />
<dictionary name="合同類型" value="contract.type" />
<dictionary name="合同狀態" value="contract.status" />
</dictionaries>
<html>
<body>
<input type="button" value="add row" id="addrow"/>
<table>
<tr>
<td width="20"><input type="checkbox" /><td>
<td>dddddddd</td>
</tr>
</table>
</body>
<script type="text/javascript" src="jquery-1.5.1.min.js"></script>
<script type="text/javascript" >
$(document).ready(function(){
$('input[type="checkbox"]').live('click',function(){//live給新添加的節點添加事件
$(this).parent().parent().remove();
});
$('addrow').mouseover(function(){
$(this).css('color','red');
});
$('addrow').mouseout(function(){
$(this).css('color','red');
});
$('#addrow').click(function(){
var tr = $('<tr>');
var td1 = $('<td>');
td1.attr('width','20');
var input = $('<input>');
input.attr('type','checkbox');
var td2 = $('<td>');
td2.text('aaaa');
td1.append(input);
tr.append(td1);
tr.append(td2);
//$('table').append(tr);
$('tbody tr:first').before(tr);
});
});
</script>
</html>
<html>
<body>
<input type="button" value="add row" id="addrow"/>
<table>
<tr>
<td width="20"><input type="checkbox" /><td>
<td>dddddddd</td>
</tr>
</table>
</body>
<script type="text/javascript" src="jquery-1.5.1.min.js"></script>
<script type="text/javascript" >
$(document).ready(function(){
$('input[type="checkbox"]').click(function(){
$(this).parent().parent().remove();
});
$('#addrow').click(function(){
var tr = $('<tr>');
var td1 = $('<td>');
td1.attr('width','20');
var input = $('<input>');
input.attr('type','checkbox');
var td2 = $('<td>');
td2.text('aaaa');
td1.append(input);
tr.append(td1);
tr.append(td2);
$('table').append(tr);
});
});
</script>
</html>
<html>
<head></head>
<body>
<form name="fm1" id="fm1">
name:<input type="text" name="name" id="name1" />
<input type="submit" id="s1"/>
</form>
<form name="fm2" id="fm2">
name:<input type="text" name="name" id="name2" />
<input type="submit" id="s2" />
</form>
<script type="text/javascript">
//var form = document.getElementById('fm2');
//var formarray = document.forms[1];//得到頁面中所以表單的數組
//var form = document.forms['fm1'];//根據表單name屬性得到數組
var form = document.fm1;//根據表單name屬性得到數組
alert(form);
</script>
</body>
</html>
<html>
<head></head>
<body>
<input type="text" id="mytext" />
<span id="myspan"></span>
<script type="text/javascript">
var mytext=document.getElementById('mytext');
var myspan=document.getElementById('myspan');
mytext.onfocus = function(){
myspan.innerHTML = '得到焦點';
}
mytext.onblur = function(){
myspan.innerHTML = '失去焦點';
}
window.onbeforeunload=function(){
var v = mytext.value;
alert(v);
if(v){
return '444';
}
}
</script>
</body>
</html>
<html>
<head></head>
<body>
<div id="div1">1111111111
<div id="div2">2222222222</div>
</div>
<input type="button" id="btn" />
<a href=" <a href="javascript:;" >普通按鈕，不跳轉</a>
<script type="text/javascript">
var eventUtil = {
addHandler:function(element,type,handler){
if(element.addEventListener){
element.addEventListener(type,handler,false);
}else if(element.attachEvent){
element.attachEvent('on'+type,handler);
}else {
element['on'+type]=handler;
}
},
getEvent:function(event){
return event ? event : window.event;
},
getElement: function(e){
if(e.target){
return e.target;
}else {
return e.srcElement;
}
},
preventDefault:function(e){
if(e.preventDefault){
e.preventDefault();
}else {
e.returnValue=false;
}
},
stopPropagation : function(e){
if(e.stopPropagation){
e.stopPropagation();
}else {
e.cancelBubble=true;
}
}
};
function test(event){
var e = eventUtil.getEvent(event);
alert("1="+e);
var element = eventUtil.getElement(e);
element.value = '33333333';
alert("2="+element);
}
var btn = document.getElementById('btn');
eventUtil.addHandler(btn,'click',test);
</script>
</body>
</html>
在非ie中
<html>
<head></head>
<body>
<div id="div1">1111111111
<div id="div2">2222222222</div>
</div>
<input type="button" id="btn" />
<a href="
<a href="javascript:;" >普通按鈕，不跳轉</a>
<script type="text/javascript">
document.getElementById('btn').onclick = function(event){
//在非ie中
alert(event.type);
alert(event.target);
}
document.getElementById('mya').onclick = function(event){
alert(event.cancelable);
if(event.cancelable){
event.preventDefault();//阻止事件的發生
}
}
document.getElementById('btn').onclick = function(event){
//alert(1);
event.stopPropagation();//阻止事件的傳播
}
document.body.onclick=function(){
//alert(2);
}
</script>
</body>
</html>
在ie中
<html>
<head></head>
<body>
<div id="div1">1111111111
<div id="div2">2222222222</div>
</div>
<input type="button" id="btn" />
<a href="
<a href="javascript:;" >普通按鈕，不跳轉</a>
<script type="text/javascript">
var event;
function getEvent(){
event=window.event;
}
document.getElementById('btn').onclick = function(event){
getEvent();
alert(event.type);
alert(event.srcElement);//得到目標元素
event.cancelBubble = true;//取消事件冒泡
event.returnValue = false;//取消默認行為
}
//使用下面的方法可以在參數中得到event
document.getElementById('btn').attachEvent('onclick',function(event){
});
</script>
</body>
</html>
<html>
<head></head>
<body>
<div id="div1">1111111111
<div id="div2">2222222222</div>
</div>
<script type="text/javascript">
var EventUtil = {
addHandler:function(element,type,handler){
if(element.addEventListener){
element.addEventListener(type,handler,false);
}else if(element.attachEvent){
element.attachEvent('on'+type,handler);
}else {
element['on'+type]=handler;
}
},
removeHandler:function(element,type,handler){
if(element.addEventListener){
element.removeEventListener(type,handler,false);
}else if(element.attachEvent){
element.detachEvent('on'+type,handler);
}else {
element['on'+type]=null;
}
}
}
function alertid(){
alert(this.id);
}
var div1 = document.getElementById('div1');
var div2 = document.getElementById('div2');
EventUtil.addHandler(div2,'click',alertid);
//EventUtil.removeHandler(div2,'click',alertid);
//ie
//div1.attachEvent('onclick',alertid);
//div2.attachEvent('onclick',alertid);
//非ie
//div1.addEventListener('click',alertid,true);
//div2.addEventListener('click',alertid,true);
</script>
</body>
</html>