Struts标签库
2、struts-bean
3、struts-logic
一：<html>
<html:form action="/reg" method="post">
<html:text property="account"/>
<html:password property="password"/>
<html:textarea property="UserInfo" rows="6" cols="10" value=""></html:textarea>
<html:hidden property="hiddeninfo"></html:hidden>
<!--RegForm.java==> Private String sex="boy"-->
<html:radio property="sex" value="boy"></html:radio>男
<html:radio property="sex" value="girl"></html:radio>女
<!---->
<html:select property="home" value="hubei" muliple="true" size="5">
<html:option value="hunan">湖南</html:option>
<html:option value="hubei">湖北</html:option>
<html:option value="zhejiang">浙江</html:option>
<html:select>
<!--RegForm.java==>private String[] fav={"sing"}-->
<html:multibox property="fav" values="sing" ></html:multibox>唱歌
<html:multibox property="fav" values="drink" ></html:multibox>喝酒
<html:multibox property="fav" values="dance" ></html:multibox>跳舞
<html:multibox property="fav" values="eat" ></html:multibox>吃肉
<!--RegForm.java==>private boolean inteam
reset(){ this.inteam=false;}-->
<html:checkbox property="inteam"></html:checkbox>
</html:form>
<!--Result.jsp参数的值全从RegForm.java中读取-->
<%
String[] fav=regform.getFav();
for(int i=0;i<fav.length;i++)
{
out.println(fav[i]);
}
%>
二：<html:link>
<html:link page="/jsp2.jsp">链接1</html:link>
<html:link href="jsp2.jsp">链接2</html:link>
<html:link forward="JSP2"></html:link>
struts-config.xml
<global-forwards>
<forward name="JSP2" path="/jsp2.jsp"></forward>
</global-forwards>
<html:link action="/XXXaciotn.do">诸如退出登陆之类</html:link>
<%
request.setAttribute("UserName","jembai");
session.setAttribute("UserName","jembai");
application.setAttribute("UserName","jembai");
%>
<!--"page"==>"request"==>"session"==>"application"-->
<html:link page="/jsp2.jsp" paramId="param" paramName="UserName"></html:link>
<!--传某一个对象的一个属性值-->
<% Student stu=new Student();
stu.setStuid("0002");
session.setAttribute("stu",stu);
%>
<html:link page="/jsp2.jsp" paramId="param" paramName="stu" paramProperty="stuid">传某一个对象的一个属性值</html:link>
<%
<!--多参数传参-->
HashMap mp=new HashMap();
mp.put("param1","001");
mp.put("param2","002");
mp.put("param3","003");
session.setAttribute("hashmap",mp);
%>
<html:link page="/jsp2.jsp" name="hashmp">hash多参数传值</html:link>
三：<bean>
<bean:parameter>==request.getParameter("");
<%
String str=request.getParameter("param");
out.print(str);
%>
转化为bean标签为：
<bean:parameter id="str" name="param"/>
<bean:write name="str" filter="false"/>
<beam:write name="stu" property="stuid"/>
读Cookie的标签:
写Cookie：
<%response.addCookie(new Cookie("UserName","jembai"))%>
读Cookie：
<bean:cookie name="UserName",id="myCookie"/><bean:write name="myCookie" property="value"/>
四：<Logic>
<logic:equal name="str" value="001">
OK
</logic:equal>
<logic:notequal>
</logic:notequal>
<logic:greaterEqual>
<logic:lessEqual>
<logic:lessThan>
<logic:present name="stu"></logic:present>
<logic:notPresent></logic:notPresent>====>"if(XXX!=NULL)"
<logic:greaterThan>
<!--遍历数组-->
<%
ArrayList Books=new ArrayList();
books.add("三国演义");
books.add("水浒传");
books.add("红楼梦");
session.setAttribute("books",books);
%>
<logic:iterate id="book" name="books">
<bean:write name="book"/>
</logic:iterate>
<%
ArrayList stus=new ArrayList();
Students stu1=new Students(); stu1.setStuid("0001"); stus.add(stu1);
Students stu2=new Students(); stu2.setStuid("0001"); stus.add(stu2);
Students stu3=new Students(); stu3.setStuid("0001"); stus.add(stu3);
session.setAttribute("stus",stus);
%>
<logic:iterate id="stu" name="stus" >
<bean:write name="stu" property="stuid"/>
</logic:iterate>
<%
ArrayList phones=new ArrayList();
phones.add("234534556");
phones.add("456456243");
Students stu4=new Students();
stu4.setPhones(phones);
session.setAttribute("stu4",stu4);
%>
<logic:iterate id="phone" name="stu4" property="phones">
<bean:write name="phone"/>
</logic:iterate>
<!--遍历HashMap-->
<%
HashMap mp=new HashMap();
mp.put("param1","001");
mp.put("param2","002");
mp.put("param3","003");
session.setAttribute("hashmap",mp);
%>
<logic:iterate id="element" name="hashmap">
<bean:write name="element" property="key"/>
<bean:write name="element" property="value"/>
</logic:iterate>
