ssm框架写查询

配置文件
1.applicationContext.xml
2.db.properties
3.log4.properties
4.spring-mvc.xml
5.web.xml
6.TbUserMapper.xml

TbUser.java
public class TbUser {
private int id;
private String username;
private String password;

public int getId() {
    return id;
}

public void setId(int id) {
    this.id = id;
}

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 toString() {
    return "TbUser{" +
            "id=" + id +
            ", username='" + username + '\'' +
            ", password='" + password + '\'' +
            '}';
}

}

IUserDao.java
public interface IUserDao {
List findAll();
}

IUserService.java
public interface IUserService {
List findAll();
}

UserServicelmpl.java
import java.util.List;

@Service
public class UserServicelmpl implements IUserService {

@Autowired
private IUserDao userDao;

@Override
public List<TbUser> findAll() {
    return userDao.findAll();
}

TbUserMapper.xml

<?xml version="1.0" encoding="UTF-8" ?> select * from tb_user

index.jsp
<%@ page language=“java” contentType=“text/html; charset=UTF-8”
pageEncoding=“UTF-8” isELIgnored=“false”%>

用户名:

密码:

来源：https://blog.csdn.net/duxinzhesss/article/details/99685140