后台写法:
List<LabelValueBean> roleList = new ArrayList<LabelValueBean>();
request.setAttribute("roleList", roleList);
dto = ctlBL.getUserRolesNotInProcess(dto);
List<UserRoleInfo> list = dto.getUserRoleList();
for(UserRoleInfo info : list){
//前面的是页面显示的值,后面的是要存储的值
roleList.add(new LabelValueBean(info.getRolename(), info.getRoleid().toString()));
}
if(roleList.isEmpty()){
roleList.add(new LabelValueBean("", ""));
}
页面写法:
<html:select
property="prroleid" style="width: 120px;"
errorStyleClass="inputError imeActive" tabindex="2"
onchange="changePrRolename()">
<html:options collection="roleList" property="value" name=""
labelProperty="label"/>
</html:select>
原理就是在后台做一个LabelValueBean的list,发到前台的option处,通过标签自动进行值的处理~~~