searchactionform.java

基于JSP+Struts的在线购物商城

package eshop.struts;

import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;

public class SearchActionForm extends ActionForm {
	
	private String keywords;
	
	public String getKeywords() {
		return this.keywords;
	}
	
	public void setKeywords( String keywords ) {
		this.keywords = keywords;
	}
	
	public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) {
        ActionErrors errors = new ActionErrors();
        if(keywords == null) {
            //此处keywords为错误的key,在前面页面中要使用该名字以显示该错误
            errors.add("keywords",new ActionMessage("error.keyword.empty"));
        } else {
        	String[] keywordArray = keywords.split(",");
        	MyDb md = new MyDb();
        	List<String> forbiddenWords = md.allForbiddenWords();
        	for( String word : keywordArray ) {
        		if( forbiddenWords.contains(word) ) {
        			errors.add("keywords",new ActionMessage("error.keyword.illegal"));
        			break;
        		}
        	}
        }
        return errors;
	}

}