<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 配置解析properties文件的工具类-->
<context:property-override location="db.properties"/>
<!-- 配置数据源-->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<!-- 配置jdbcTemplate-->
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 配置UsersDao-->
<bean id="usersDao" class="com.bjsxt.dao.impl.UsersDaoImpl">
<property name="jdbcTemplate" ref="jdbcTemplate"/>
</bean>
<!-- 配置业务层依赖注入-->
<bean id="usersService" class="com.bjsxt.service.impl.UsersServiceImpl">
<property name="usersDao" ref="usersDao"/>
</bean>
老师我的配置文件哪里错了吗？一直报错，实在找不到哪里错了
报错截图：
持久层代码：
public interface UsersDao {
int insertUsers(Users users);
}
package com.bjsxt.dao.impl;
import com.bjsxt.dao.UsersDao;
import com.bjsxt.pojo.Users;
import org.springframework.jdbc.core.JdbcTemplate;
public class UsersDaoImpl implements UsersDao {
private JdbcTemplate jdbcTemplate;
public JdbcTemplate getJdbcTemplate() {
return jdbcTemplate;
}
public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}
/**
* 添加用户
* @param users
* @return
*/
@Override
public int insertUsers(Users users) {
//要执行的sql语句
String sql = "insert into users values(default,?,?)";
//要创建一个object数组，来存放sql语句中的参数，参数的名字和位置要一一对应，第一个就是第一个
Object[]param = new Object[]{users.getUsername(),users.getUsersex()};
return this.jdbcTemplate.update(sql,param);
}
}业务层代码：
public interface UsersService {
int addUsers(Users users);
}
package com.bjsxt.service.impl;
import com.bjsxt.dao.UsersDao;
import com.bjsxt.pojo.Users;
import com.bjsxt.service.UsersService;
public class UsersServiceImpl implements UsersService {
private UsersDao usersDao;
public UsersDao getUsersDao() {
return usersDao;
}
public void setUsersDao(UsersDao usersDao) {
this.usersDao = usersDao;
}
/**
* 添加用户
* @param users
* @return
*/
@Override
public int addUsers(Users users) {
int i = usersDao.insertUsers(users);
return i;
}
}
测试层代码：
import com.bjsxt.pojo.Users;
import com.bjsxt.service.UsersService;
import com.bjsxt.service.impl.UsersServiceImpl;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class InsertUsersTest {
public static void main(String[] args) {
ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
UsersService usersService = (UsersService) applicationContext.getBean("usersService");
Users users = new Users();
users.setUsername("wjy");
users.setUsersex("female");
int i = usersService.addUsers(users);
System.out.println(i);
}
}
pojo代码：
public class Users {
private int userid;
private String username;
private String usersex;
public int getUserid() {
return userid;
}
public void setUserid(int userid) {
this.userid = userid;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getUsersex() {
return usersex;
}
public void setUsersex(String usersex) {
this.usersex = usersex;
}
@Override
public String toString() {
return "Users{" +
"userid=" + userid +
", username='" + username + '\'' +
", usersex='" + usersex + '\'' +
'}';
}
}
properties文件：
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/bjsxt
jdbc.username=root
jdbc.password=zjx666888
为啥字符串无法强转型成字节型？
为什么我按上下左右键没有输出
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