struts2操作数据库

struts2操作数据库是刚開始学习的人的一个难点也是一个重点，如今我为大家解说一下struts2操作数据库，使用struts2对数据库进行增、删、改、查和分页查询，请看以下的代码：

User类

public class UserAction extends ActionSupport{

    List<User> userList;

    UserDao userDao=new UserDao();

    User user;

    User2 user2;

public User2 getUser2() {

return user2;

}

















public void setUser2(User2 user2) {

this.user2 = user2;

}

















public User getUser() {



return user;

}

















public void setUser(User user) {

this.user = user;

}

















public int getFirstRecord() {

return firstRecord;

}

















public void setFirstRecord(int firstRecord) {

this.firstRecord = firstRecord;

}





private  int currentPage =1;



private int Records ;



private int  pageSize =5;



private  int pages ;



int firstRecord;







public List<User> getUserList() {

return userList;

}

public void setUserList(List<User> userList) {

this.userList = userList;

}

public UserDao getUserDao() {

return userDao;

}

public void setUserDao(UserDao userDao) {

this.userDao = userDao;

}

public int getCurrentPage() {

return currentPage;

}

public void setCurrentPage(int currentPage) {

this.currentPage = currentPage;

}

public int getRecords() {

return Records;

}

public void setRecords(int records) {

Records = records;

}

public int getPageSize() {

return pageSize;

}

public void setPageSize(int pageSize) {

this.pageSize = pageSize;

}

public int getPages() {

return pages;

}

public void setPages(int pages) {

this.pages = pages;

}

    public void pages(){

    Records=userDao.getAllCount();

 

 

  pages = Records/pageSize+((Records%pageSize==0)?0:1);

  firstRecord =(currentPage-1)*pageSize;

    }

public String listAll() throws Exception {





        this.pages();

userList =userDao.doList(firstRecord, pageSize);

return SUCCESS;

}

  public String addUser(){

userDao.addUser(user);

return SUCCESS;

}

    public String deleteUser(){

    userDao.deleteUser(user);

    return SUCCESS;

    }

    public String updateUser(){

    userDao.updateUser(user);

    return SUCCESS;

    }

    public String getInfo(){   

   

    user=userDao.getInfo(user.uid);

   

    return SUCCESS;

    }

数据库连接自己写就能够了，之后再action里配置一下就能够执行了，假设须要源码能够到http://blog.csdn.net/u014626784资源中下载。