读书笔记-3
1、resultMap配置
2、ibatis一对多配置
3、jquery笔记
2、ibatis一对多配置
3、jquery笔记
1、resultMap配置
当<select resultMap="topic_data">
<resultMap id="topic_data">必须一一对应。
(1)<resultMap class="tblTopic" id="topic_data">
<result property="topicId" column="topicid"/>
<result property="title" column="title"/>
<result property="content" column="content"/>
<result property="publishTime" column="publishtime"/>
</resultMap>
<select id="getTopics" parameterClass="java.lang.Integer" resultMap="topic_data">
select topicid topicId, title title,
content content, publishtime publishTime, modifytime modifyTime
from tbl_topic where boardid=#boardid#
</select>
(2)错误的配置(modifytime在resultMap中配置，在select中就应该查询出)
<resultMap class="tblTopic" id="topic_data">
<result property="topicId" column="topicid"/>
<result property="title" column="title"/>
<result property="content" column="content"/>
<result property="publishTime" column="publishtime"/>
<result property="modifyTime" column="modifytime"/>
</resultMap>
<select id="getTopics" parameterClass="java.lang.Integer" resultMap="topic_data">
select topicid topicId, title title,
content content, publishtime publishTime
from tbl_topic where boardid=#boardid#
</select>
2、ibatis一对多配置
<resultMap id="board_data" class="tblBoard">
<result property="boardId" column="boardid"/>
<result property="boardName" column="boardname"/>
<result property="parentId" column="parentid"/>
<result property="topics" column="boardid" select="board_mapping.getTopics"/>
</resultMap>
<resultMap id="topic_data" class="tblTopic" >
<result property="topicId" column="topicid"/>
<result property="title" column="title"/>
<result property="content" column="content"/>
<result property="publishTime" column="publishtime"/>
<result property="modifyTime" column="modifytime"/>
</resultMap>
<select id="getTopics" parameterClass="java.lang.Integer" resultMap="topic_data">
select topicid topicId, title title,
content content, publishtime publishTime, modifytime modifyTime
from tbl_topic where boardid=#boardid#
</select>
<select id="getBoardById" parameterClass="java.lang.Integer" resultMap="board_data">
select boardid as "boardId",boardname as "boardName",parentid as "parentId" from tbl_board
where boardid=#id#
</select>
3、jquery笔记
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'register.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<style type="text/css">
.focus{
border:1px solid #foo;
background:#fcc;
}
.username{
border:1px solid #foo;
background:#fcd;
}
</style>
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
</head>
<script type="text/javascript">
$(document).ready(function(){
$(":input").focus(function(){//选中所有input、textarea、select、button
$(this).addClass("focus");
}).blur(function(){
$(this).removeClass("focus");
})
});
function registerFun(){
$(document).ready(function(){
//alert($("#username").val());
})
$(document).ready(function(){
//alert($("#password").val());
})
//jquery----dom
//var $username=$("#username");//jquery对象
//var username=$username[0];//dom对象-1
//var username=$username.get(0);//dom对象-2
//alert(username.value);
//dom-----jquery
var username=document.getElementById("username");//dom对象
var $username =$(username);//jquery对象
//alert($username.get(0).value);
//获得name为sex选中的值
//var $sex=$("input[name=sex]:checked");
//alert($sex.get(0).value);
//循环checkbox
$("input[name=hobby]:checked").each(function(){
//alert(this.value);
})
//select
//alert($(".city").val());
$("#street option:selected").each(function(){
alert(this.value);
})
}
</script>
<body>
<TABLE>
<form action="/register" id="frm" name="registerFrm">
<TR><TD>用户名：</TD><TD><input type="text" name="username" id="username" class="username"/></TD></TR>
<TR><TD>密码: </TD><TD><input type="text" name="password" id="password"/></TD></TR>
<TR><TD>性别：</TD><TD><input type="radio" name="sex" value="1"/>男<input type="radio" name="sex" value="0" />女</TD></TR>
<tr><td>爱好：</td><td><input type="checkbox" name="hobby" value="篮球 " />篮球<input type="checkbox" name="hobby" value="足球"/>足球<input type="checkbox" name="hobby" value="拍球"/>拍球</td></tr>
<tr><td>地区：</td><td>
<select id="dis" name="city" class="cityuu">
<option value="beijing">北京</option>
<option value="shanghai">上海</option>
<option value="nanjing">南京</option>
<option value="wuhan">武汉</option>
</select></td></tr>
<tr><td>街道：</td><td>
<select id="street" name="street" multiple>
<option value="shunyi">顺义</option>
<option value="chaoyang">朝阳</option>
<option value="haidian">海淀</option>
</select></td>
</tr>
<tr>
<td><input type="button" value="提交" onclick="registerFun()"/></td>
<td><input type="reset" value="重置"/></td>
</tr>
</form>
</TABLE>
</body>
</html>