IntelliJ IDEA 搭建一个比较完整的网站实例 10

下面进行username和password向数据库中插入的操作，与前面的操作基本相同。

1.在Address中添加addUsers方法：

package Service;

import com.dojo.UserEntity;
import com.dojo.UsersEntity;

import java.util.List;

public interface Address {
    void add(UserEntity ue);
    List<UserEntity> selectAll();
    boolean searchUsername(String username);
    boolean addUsers(UsersEntity usersEntity);
}

2.在AddressImpl中写实现方法：

package Service;

import com.dojo.UserEntity;
import com.dojo.UsersEntity;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.query.Query;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;

import java.util.List;

public class AddressImpl implements Address{

    @Qualifier("sessionFactory")
    @Autowired
    private SessionFactory sessionFactory;

    @Override
    public void add(UserEntity ue){
        Session session = sessionFactory.openSession();
        Transaction tx = session.beginTransaction();
        session.save(ue);
        tx.commit();
    }

    @Override
    public List<UserEntity> selectAll(){
        Session session = sessionFactory.openSession();
        Transaction transaction = session.beginTransaction();

        Query query = session.createQuery("from UserEntity ");
        List<UserEntity> list = query.list();

        transaction.commit();
        return list;

    }
    @Override
    public boolean searchUsername(String username){
        Session session = sessionFactory.openSession();
        Transaction transaction = session.beginTransaction();
        Query query = session.createQuery("select count(*) from UsersEntity as u where u.username=?0").setParameter(0,username);
        transaction.commit();
        Number number = (Number)query.uniqueResult();
        if(number.intValue()>0){
            return true;
        }else{
            return false;
        }
    }
    @Override
    public boolean addUsers(UsersEntity usersEntity){
        Session session = sessionFactory.openSession();
        Transaction transaction = session.beginTransaction();
        session.save(usersEntity);
        transaction.commit();
        return true;
    }
    public void setSessionFactory(SessionFactory sessionFactory){
        this.sessionFactory = sessionFactory;
    }
}

3.在IOutputGenerator中添加addUsers方法，用来将用户名和密码转换成UsersEntity的格式：

package com.yiibai.output;

public interface IOutputGenerator {
    String generateOutput(String uname);
    boolean generateSearchUsername(String username);
    boolean addUsers(String username,String password);
}

4.在CsvOutputGenerator中添加该方法的实现：

package com.yiibai.output.impl;

import Service.Address;
import Service.AddressImpl;
import com.dojo.UserEntity;
import com.dojo.UsersEntity;
import com.yiibai.output.IOutputGenerator;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class CsvOutputGenerator implements IOutputGenerator {

    @Override
    public String generateOutput(String uname){
        ApplicationContext ac=new ClassPathXmlApplicationContext(new String[]{"spring-config.xml"});
        Address address = (AddressImpl)ac.getBean("address");
        UserEntity userEntity = new UserEntity();
        userEntity.setUname(uname);
        address.add(userEntity);
        return "SUCCESS";
    }
    @Override
    public boolean generateSearchUsername(String username){
        ApplicationContext ac=new ClassPathXmlApplicationContext(new String[]{"spring-config.xml"});
        Address address = (AddressImpl)ac.getBean("address");
        return address.searchUsername(username);
    }
    @Override
    public boolean addUsers(String username,String password){
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext(new String[]{"spring-config.xml"});
        Address address = (AddressImpl)applicationContext.getBean("address");
        UsersEntity usersEntity = new UsersEntity();
        usersEntity.setUsername(username);
        usersEntity.setPassword(password);
        return address.addUsers(usersEntity);
    }
}

5.在OutputHelper中添加与action交互的类

package com.yiibai.output;

public class OutputHelper {
    IOutputGenerator outputGenerator;

    public String generateOutput(String uname){
        return outputGenerator.generateOutput(uname);
    }

    public boolean generateSearchUsername(String username){ return outputGenerator.generateSearchUsername(username);}

    public boolean addUsers(String username,String password){ return outputGenerator.addUsers(username,password);}

    public void setOutputGenerator(IOutputGenerator outputGenerator){
        this.outputGenerator = outputGenerator;
    }
}

6.最后在RegisterAction中调用，并将结果传递给页面：

package com.kay.struts2.Action;

import com.opensymphony.xwork2.ActionSupport;
import com.yiibai.output.OutputHelper;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class RegisterAction extends ActionSupport {

    private String username;
    private String password;
    private String result;
    public String getResult() {
        return result;
    }

    public void setResult(String result) {
        this.result = result;
    }



    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }



    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }


    @Override
    public String execute(){
        String username = this.getUsername();
        String password = this.getPassword();

        ApplicationContext context = new ClassPathXmlApplicationContext(new String[]{"spring-config.xml"});
        OutputHelper output = (OutputHelper)context.getBean("OutputHelper");
        if(output.generateSearchUsername(username)){
            this.setResult("already");
        }else{
            boolean b = output.addUsers(username,password);
            if(b){
                this.setResult("success");
            }else{
                this.setResult("error");
            }
        }
        return SUCCESS;
    }
    public String registerPage(){
        return SUCCESS;
    }

}

运行tomcat，添加数据：

成功。

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