Question

Struts2用action类从jsp中获取select中option的value值

Answer 1

jsp页面部分代码：
<s:form name="form1" method="post" action="glydenglu" namespace="/ssgl">
<select name="role" >
<option value="1">普通管理员</option>
<option value="2">系统管理员</option>
</select>
</s:form>
action类：
public class GlydengluAction extends ActionSupport {
private String role;

@Override
public String execute() throws Exception {
// TODO Auto-generated method stub
return super.execute();
}

public String denglu(){
HttpServletRequest request = ServletActionContext.getRequest();
String roles = request.getParameter("role");

if(rand_input.equals(rand)){
System.out.println(roles);
return SUCCESS;
}else{
return INPUT;
}
}
}

System.out.println(roles);打印出来的就是option的value值。

Answer 2

就和普通参数一样获取哇，你就当是Input一样取就行了

Answer 3

request.getParameter(" ");