SSH series: (13) Extract Baseaction

in theActioninherited from theActionsupportand some other public properties, such asSelectedrowAnd so on, it is possible that more public content will be generated in the future, so it should be extracted into a basicAction, we are namedbaseaction, let it inheritActionsupportand other public properties, the otherActionas long as you inherit it.

Baseaction.java

Package Com.rk.core.action;import Com.opensymphony.xwork2.actionsupport;public abstract class Baseaction extends Actionsupport {protected string[] selectedrow;public string[] Getselectedrow () {return selectedrow;} public void Setselectedrow (string[] selectedrow) {this.selectedrow = Selectedrow;}}

Note:string[] Selectedrow uses the protected modifier because it is accessible in subclasses .

Useraction.java

package com.rk.tax.action;import java.io.file;import java.io.ioexception;import  Java.io.unsupportedencodingexception;import java.net.uri;import java.net.urisyntaxexception;import  java.net.URLEncoder;import java.util.List;import java.util.UUID;import  javax.servlet.servletoutputstream;import javax.servlet.http.httpservletrequest;import  javax.servlet.http.httpservletresponse;import org.apache.commons.io.fileutils;import  org.apache.commons.io.ioutils;import org.apache.commons.lang3.stringutils;import  org.apache.struts2.servletactioncontext;import org.slf4j.logger;import org.slf4j.loggerfactory; import com.opensymphony.xwork2.actionsupport;import com.rk.core.action.baseaction;import  com.rk.tax.entity.user;import com.rk.tax.service.userservice;public class useraction  extends baseaction {/***** 1, Business Data  *****/private List<User> userList;Used to display the list of users private user user;//for adding, modifying, and deleting individual users//user avatars private file headimg;private string  headimgcontenttype;private string headimgfilename;//Import excelprivate file userexcel; PRIVATE&NBSP;STRING&NBSP;USEREXCELCONTENTTYPE;PRIVATE&NBSP;STRING&NBSP;USEREXCELFILENAME;/*****&NBSP;2, Business implementation class  *****/private userservice userservice;public void setuserservice (UserService  UserService)  {this.userservice = userservice;} /*****&NBSP;3, page Response Action  *****///List page Public string listui () {userlist =  Userservice.findall ();return  "Listui";} Jump to New Page Public string addui () {return  "Addui";} Save New Public string add () {try {if (user != null) {if (headimg != null) {///1, Save Avatar to Upload/userstring filepath = servletactioncontext.getservletcontext (). GetRealPath ("upload/ user/"); String filename = uuid.randomuuid (). toString (). ReplaceAll ("-",  "")  + headimgfilename.substring (Headimgfilename.lastindexof (".")); Fileutils.copyfile (Headimg, new file (Filepath,filename));//2, set user Avatar path User.setheadimg ("user/"  +  filename);  }userservice.save (user);}}  catch  (exception e)  {e.printstacktrace ();} return  "List";} Jump to edit page Public string editui () {if (User != null && user.getid ()  !=  null) {User = userservice.findbyid (User.getid ());} return  "Editui";} Save Edit Public string edit () {try {if (user != null) {if (headimg != null) {///1, Save Avatar to Upload/userstring filepath = servletactioncontext.getservletcontext (). GetRealPath ("upload/ user/"); String filename = uuid.randomuuid (). toString (). ReplaceAll ("-",  "")  +  Headimgfilename.substring (Headimgfilename.lastindexof (".")); Fileutils.copyfile (Headimg, new file (Filepath,filename));//2, set user Avatar path User.setheadimg ("user/" + filename);  }userservice.update (user);}}  catch  (exception e)  {e.printstacktrace ();} return  "List";} Delete Public string delete () {if (User != null && user.getid ()  !=  NULL) {Userservice.delete (User.getid ());} return  "List";} Bulk Delete public string deleteselected () {if (selectedrow != null) {for (string id :  selectedrow) {userservice.delete (id);}} return  "List";} Private string encodefilename (Final string filename) {  try{             uri uri = new uri (Null, null,  filename, null);           string encodedname  = uri.toasciistring ();     return encodedname;  }   catch (Urisyntaxexception ex) {      return filename;  }}////Export user List public void exportexcel () {try {//1, find user list userlist =  Userservice.findall ();//2, Export httpservletrequest request = servletactioncontext.getrequest (); String useragent = request.getheader ("User-agent"); System.out.println (useragent); Httpservletresponse response = servletactioncontext.getresponse (); Response.setContentType (" Application/octet-stream ");//response.setheader (" Content-disposition ", " Attachment;filename= " +  new string ("user list. xls". GetBytes (), "iso-8859-1"));//string filename =  Urlencoder.encode ("user list. xls",  "UTF-8");//response.setheader ("Content-disposition",  "attachment; Filename= "+ filename);//string filename = urlencoder.encode (" User list. xls ", " UTF-8 ");// Response.setheader ("Content-disposition",  "attachment;filename*=\" UTF8 ""  +  filename  +  "\" ");//system.out.println (" Attachment;filename*=\ "UTF8 " +  fileName + " \ ""); String filename = encodefilename ("user list. xls"); Response.setheader ("Content-disposition",  " Attachment;filename= "+ filename);//string filename = urlencoder.encode (" User list. xls ", " UTF-8 "),//response.setheader (" Content-disposition ", " Attachment;filename= "+new string (" China. xls "). GetBytes (), "iso-8859-1") + "; Filename*=utf8" " +  filename); Servletoutputstream outputstream = response.getoutputstream (); Userservice.exportexcel (UserList, OutputStream); if (outputstream != null) {outputstream.close ();}}  catch  (exception e)  {e.printstacktrace ();}} Import user list Public string importexcel () {///1, get the file and determine if it is an Excel file if (userexcel != null & & userexcelfilename.matches ("^.+\\. i) ((xls) | ( xlsx)) {//2, Import userservice.importexcel (userexcel,userexcelfilename);} return  "List";} Public void verifyaccount () {TRY&NBSP;{//1,Get an account if (User != null && stringutils.isnotblank (User.getaccount ())) {//2, According to the account to the database check whether there is a user List<user> list = userservice.finduserbyaccountandid (User.getid (), User.getaccount ()); string strresult =  "true"; if (List != null && list.size () >0) {// Indicates that the account already exists strresult =  "false";} Output Httpservletresponse response = servletactioncontext.getresponse (); Response.setContentType (" Text/plain "); Servletoutputstream outputstream = response.getoutputstream (); Outputstream.write ( Strresult.getbytes ()); Outputstream.close ();}}  catch  (ioexception e)  {e.printstacktrace ();}}  {{ propertiespublic list<user> getuserlist ()  {return userlist;} Public void setuserlist (List<user> userlist)  {this.userlist = userlist;} Public user getuser ()  {return user;} Public void setuser (User user)  {this.user = user;} Public file getheadimg ()  {return headimg;} Public void setheadimg (file headimg)  {this.headimg = headimg;} Public string getheadimgcontenttype ()  {return headimgcontenttype;} Public void setheadimgcontenttype (String headimgcontenttype)  {this.headimgcontenttype  = headimgcontenttype;} Public string getheadimgfilename ()  {return headimgfilename;} Public void setheadimgfilename (String headimgfilename)  {this.headImgFileName =  Headimgfilename;} Public file getuserexcel ()  {return userexcel;} Public void setuserexcel (File userexcel)  {this.userexcel = userexcel;} Public string getuserexcelcontenttype ()  {return userexcelcontenttype;} Public void setuserexcelcontenttype (String userexcelcontenttype)  {this.userExcelContentTypE = userexcelcontenttype;} Public string getuserexcelfilename ()  {return userexcelfilename;} Public void setuserexcelfilename (String userexcelfilename)  {this.userexcelfilename =  userexcelfilename;}  }}}

SSH series: (13) Extract Baseaction