struts使用ModelDriven获得页面数据

input.jsp中可以直接使用User对象的属性:

  <body>
    <s:form action="AddUserModelAction">
    <s:textfield name="userName" label="Your name" />
    <s:textfield name="address.address" label="Your address" />
    <s:textfield name="address.zipCode" label="Your zipCode" />
    <s:textfield name="address.phone" label="Your phone" />
    <s:submit/>
   </s:form>
  </body> 

 

success.jsp中可以直接访问User对象的属性：

  <body>
    <h4>User: <s:property value="userName" /> add success(by Model).</h4>
    <h4>Address:<s:property value="address.address" /></h4>
    <h4>zipCode:<s:property value="address.zipCode" /></h4>
    <h4>phone  :<s:property value="address.phone" /></h4>
  </body>

import javax.annotation.Resource;

import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;

import com.jaeson.hibernatestudy.bean.User;
import com.jaeson.springstudy.service.CommonService;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

@SuppressWarnings("all")
@Scope("prototype")
@Controller("userModelAction")
public class UserModelAction extends ActionSupport implements ModelDriven<User> {

	/**
	 * 在执行execute时，ValueStack已经获得模型对象的引用，在整个请求过程中框架一直使用该引用。
	 * 如果在execute内部改变了模型字段，框架不会察觉，这可能会导致数据不一致的问题。
	 */
	@Override
	public String execute() {
		
		this.getCommonService().saveOrUpdate(this.user);
		//throw new RuntimeException("throw in UserAction");
		return "success";
	}
	
	@Override
	public void validate() {
		
		if (this.user.getUserName().length() == 0) {
			this.addFieldError("userName", "userName is required.");
		}
	}
	
	private User user = new User();
	@Resource(name = "commonService")
	private CommonService commonService;
	
	@Override
	public User getModel() {
		
		return this.user;
	}

	public CommonService getCommonService() {
		return this.commonService;
	}

	public void setCommonService(CommonService commonService) {
		this.commonService = commonService;
	}
}

import javax.annotation.Resource;

import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;

import com.jaeson.hibernatestudy.bean.User;
import com.jaeson.springstudy.service.CommonService;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

@SuppressWarnings("all")
@Scope("prototype")
@Controller("userModelAction")
public class UserModelAction extends ActionSupport implements ModelDriven<User> {

	/**
	 * 在执行execute时，ValueStack已经获得模型对象的引用，在整个请求过程中框架一直使用该引用。
	 * 如果在execute内部改变了模型字段，框架不会察觉，这可能会导致数据不一致的问题。
	 */
	@Override
	public String execute() {
		
		this.getCommonService().saveOrUpdate(this.user);
		//throw new RuntimeException("throw in UserAction");
		return "success";
	}
	
	@Override
	public void validate() {
		
		if (this.user.getUserName().length() == 0) {
			this.addFieldError("userName", "userName is required.");
		}
	}
	
	private User user = new User();
	@Resource(name = "commonService")
	private CommonService commonService;
	
	@Override
	public User getModel() {
		
		return this.user;
	}

	public CommonService getCommonService() {
		return this.commonService;
	}

	public void setCommonService(CommonService commonService) {
		this.commonService = commonService;
	}
}

struts使用ModelDriven获得页面数据

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