struts2--Date类型转换

以你之姓@ 2024-02-18 14:08 44阅读 0赞

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![Center 1][]

转换结果：

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index.jsp:

LoginAction:

package com.action;
    
    import java.util.Date;
    
    import com.opensymphony.xwork2.ActionSupport;
    
    public class LoginAction extends ActionSupport{
    Date date ;
    
    public String execute() {
    	return SUCCESS;
    }
    
    public Date getDate() {
    	return date;
    }
    
    public void setDate(Date date) {
    	this.date = date;
    }
    
    }

类型转换器：

package com.converter;
    
    import java.text.ParseException;
    import java.text.SimpleDateFormat;
    import java.util.Date;
    import java.util.Map;
    
    import org.apache.struts2.util.StrutsTypeConverter;
    
    public class DateConverter extends StrutsTypeConverter{
        private static final SimpleDateFormat[] DATE_FORMAT = {
        	new SimpleDateFormat("yyyy/MM/dd"),
        	new SimpleDateFormat("yyyy-MM-dd")
        };  //支持转换类型
    	@Override
    	public Object convertFromString(Map context, String[] values, Class toClass) {
    		if(toClass == Date.class){
    			String dateString = values[0];
    			for (SimpleDateFormat format : DATE_FORMAT) {
    				try {
    					return format.parse(dateString);//parse->Date
    				} catch (ParseException e) {
    					continue;
    				}
    			}
    		}
    		return null;
    	}
    
    	@Override
    	public String convertToString(Map context, Object value) {
    		// TODO Auto-generated method stub
    		Date date = (Date)value;
    		return new SimpleDateFormat("yyyy-MM-dd").format(date);//format->String
    	}
      
    }

ok.jsp:

LoginAction-conversion.properties文件:

date=com.converter.DateConverter

[Center]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/72836d14dda84122bc4233824e93eb5e.png
[Center 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/1cd2b02790014bc0ae7be8dad820fe4d.png
[Center 2]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/9903a1719d9a41e7b35357e36d15dac3.png