tln( " "+getDistName() + "." + fieldName + " = "" + value +""");
}catch(Exception e){
//
}
}
out.println( "</script>" );
}catch( java.io.IOException ioe){
//
}
return (EVAL_BODY_INCLUDE);
}
public int doEndTag(){
return (EVAL_PAGE);
}
public String getDist() {
return dist;
}
public void setDist(String dist) {
this.dist = dist;
}
public String getDistName() {
return distName;
}
public void setDistName(String distName) {
this.distName = distName;
}
public String getScope() {
return scope;
}
public void setScope(String scope) {
this.scope = scope;
}
public String getSource() {
return source;
}
public void setSource(String source) {
this.source = source;
} }
使用Java进行Web开发的随想(2)
时间:2011-01-03
标签的tld也一起给出吧，虽然不是关键
代码:
<?xml version="1.0" encoding="UTF-8"?>
<taglib version="2.0" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee web-jsptaglibrary_2_0.xsd">
<tlibversion>1.0</tlibversion>
<jspversion>1.1</jspversion>
<shortname>J2J</shortname>
<uri>/J2J</uri>
<tag>
<name>newObject</name>
<tagclass>net.vlinux.tag.j2j.NewObject</tagclass>
<bodycontent>JSP</bodycontent>
<info></info>
<attribute>
<name>distName</name>
<required>true</required>
</attribute>
<attribute>
<name>dist</name>
<required>true</required>
</attribute>
<attribute>
<name>scope</name>
<required>true</required>
</attribute>
<attribute>
<name>source</name>
<required>true</required>
</attribute>
</tag>
</taglib>
具体调用的JSP页面
代码
<%@ taglib uri="/WEB-INF/J2J.tld" prefix="jj"%>
<%
//创建一个简单对象
net.vlinux.test.User user = new net.vlinux.test.User();
user.setId(new Integer(1));
user.setName("vlinux");
user.setPassword("lovefs");
user.setUsername("oldmanpushcart");
//把对象放到request中去
request.setAttribute("user",user);
%>
<!--
这里要注意
dist是目标Javascript对象,这个是必须和web设计人员事先约定好的
distName 是目标Javascript对象实例的名,这个也是必须和web设计人月事先约定好
scope 告诉标签去那个范围寻找java对象的实例
source 源对象,也就是java对象,标签会通过scope确定的范围搜寻source
-->
<jj:newObject dist="User" distName="user" scope="request" source="u
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