1.使用ActionContext類

//1獲取ActionContext對象ActionContext context = ActionContext.getContext();//2.調用方法獲取key-value值Map<String, Object> map = context.getParameters();Set<String> set = map.keySet();for(String key :set){Object[] o = (Object[]) map.get(key);System.out.println(Arrays.toString(o));}

2.使用ServletActionContext類

//使用ServletActionContext對象獲取request對象HttpServletRequest request = ServletActionContext.getRequest();//2.使用request對象獲取表單數據String username = request.getParameter("username");String password = request.getParameter("password");String address = request.getParameter("address");System.out.println("username="+username);System.out.println("password"+password);System.out.println("address"+address);

3.實現ServletRequestAware接口

public class FormDemo3Action extends ActionSupport implements ServletRequestAware {HttpServletRequest httpServletRequest;@Overridepublic void setServletRequest(HttpServletRequest httpServletRequest) {this.httpServletRequest=httpServletRequest;}@Overridepublic String execute(){String username = httpServletRequest.getParameter("username");String password = httpServletRequest.getParameter("password");System.out.println("username="+username);System.out.println("password="+password);return NONE;} }

總結

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