标签:接口 bug xsd 数据库 sql his ati nts package
首先看一下项目结构图:
具体步骤如下:
1、建立JDBC属性文件
jdbc.properties (文件编码修改为 utf-8 )
driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/projectview
username=root
password=729821
辅助:数据库脚本:
INSERT INTO `test_user` VALUES (1, ‘liuzhonghao‘, ‘6329869‘, ‘384037404@qq.com‘);
INSERT INTO `test_user` VALUES (2, ‘xiahe‘, ‘6329869‘, ‘12345@qq.com‘);
INSERT INTO `test_user` VALUES (3, NULL, NULL, NULL);
INSERT INTO `test_user` VALUES (4, ‘123‘, ‘123‘, ‘123‘);
INSERT INTO `test_user` VALUES (5, ‘321‘, ‘321‘, ‘321‘);
2、log4j的配置
#\u5B9A\u4E49LOG\u8F93\u51FA\u7EA7\u522B
log4j.rootLogger=INFO,Console,File
#\u5B9A\u4E49\u65E5\u5FD7\u8F93\u51FA\u76EE\u7684\u5730\u4E3A\u63A7\u5236\u53F0
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
#\u53EF\u4EE5\u7075\u6D3B\u5730\u6307\u5B9A\u65E5\u5FD7\u8F93\u51FA\u683C\u5F0F\uFF0C\u4E0B\u9762\u4E00\u884C\u662F\u6307\u5B9A\u5177\u4F53\u7684\u683C\u5F0F
log4j.appender.Console.layout = org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n
#\u6587\u4EF6\u5927\u5C0F\u5230\u8FBE\u6307\u5B9A\u5C3A\u5BF8\u7684\u65F6\u5019\u4EA7\u751F\u4E00\u4E2A\u65B0\u7684\u6587\u4EF6
log4j.appender.File =org.apache.log4j.RollingFileAppender
#\u6307\u5B9A\u8F93\u51FA\u76EE\u5F55
log4j.appender.File.File = logs/ssm.log
#\u5B9A\u4E49\u6587\u4EF6\u6700\u5927\u5927\u5C0F
log4j.appender.File.MaxFileSize = 10MB
# \u8F93\u51FA\u6240\u4EE5\u65E5\u5FD7\uFF0C\u5982\u679C\u6362\u6210DEBUG\u8868\u793A\u8F93\u51FADEBUG\u4EE5\u4E0A\u7EA7\u522B\u65E5\u5FD7
log4j.appender.File.Threshold = ALL
log4j.appender.File.layout =org.apache.log4j.PatternLayout
log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-ddHH\:mm\:ss}][%c]%m%n
3、建立工程
(1)User类
package com.hqj.model;
public class User {
private Integer id;
private String username;
private String password;
private String email;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username == null ? null : username.trim();
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password == null ? null : password.trim();
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email == null ? null : email.trim();
}
public User() {
super();
// TODO Auto-generated constructor stub
}
public User(Integer id, String username, String password, String email) {
super();
this.id = id;
this.username = username;
this.password = password;
this.email = email;
}
@Override
public String toString() {
return "User [id=" + id + ", username=" + username + ", password="
+ password + ", email=" + email + "]";
}
}
(2)UserMapper类(Mybatis中的DAO类)
package com.hqj.dao;
import com.hqj.model.User;
public interface UserMapper {
int deleteByPrimaryKey(Integer id);
int insert(User record);
int insertSelective(User record);
User selectByPrimaryKey(Integer id);
int updateByPrimaryKeySelective(User record);
int updateByPrimaryKey(User record);
}
(3)UserMapper类(Mybatis映射文件)
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.hqj.dao.UserMapper" >
<resultMap id="BaseResultMap" type="com.hqj.model.User" >
<id column="id" property="id" jdbcType="INTEGER" />
<result column="username" property="username" jdbcType="VARCHAR" />
<result column="password" property="password" jdbcType="VARCHAR" />
<result column="email" property="email" jdbcType="VARCHAR" />
</resultMap>
<sql id="Base_Column_List" >
id, username, password, email
</sql>
<select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
select
<include refid="Base_Column_List" />
from test_user
where id = #{id,jdbcType=INTEGER}
</select>
<delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
delete from test_user
where id = #{id,jdbcType=INTEGER}
</delete>
<insert id="insert" parameterType="com.hqj.model.User" >
insert into test_user (id, username, password,
email)
values (#{id,jdbcType=INTEGER}, #{username,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR},
#{email,jdbcType=VARCHAR})
</insert>
<insert id="insertSelective" parameterType="com.hqj.model.User" >
insert into test_user
<trim prefix="(" suffix=")" suffixOverrides="," >
<if test="id != null" >
id,
</if>
<if test="username != null" >
username,
</if>
<if test="password != null" >
password,
</if>
<if test="email != null" >
email,
</if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides="," >
<if test="id != null" >
#{id,jdbcType=INTEGER},
</if>
<if test="username != null" >
#{username,jdbcType=VARCHAR},
</if>
<if test="password != null" >
#{password,jdbcType=VARCHAR},
</if>
<if test="email != null" >
#{email,jdbcType=VARCHAR},
</if>
</trim>
</insert>
<update id="updateByPrimaryKeySelective" parameterType="com.hqj.model.User" >
update test_user
<set >
<if test="username != null" >
username = #{username,jdbcType=VARCHAR},
</if>
<if test="password != null" >
password = #{password,jdbcType=VARCHAR},
</if>
<if test="email != null" >
email = #{email,jdbcType=VARCHAR},
</if>
</set>
where id = #{id,jdbcType=INTEGER}
</update>
<update id="updateByPrimaryKey" parameterType="com.hqj.model.User" >
update test_user
set username = #{username,jdbcType=VARCHAR},
password = #{password,jdbcType=VARCHAR},
email = #{email,jdbcType=VARCHAR}
where id = #{id,jdbcType=INTEGER}
</update>
</mapper>
(4)UserService类(Spring中对应的类接口)
package com.hqj.service;
import com.hqj.model.User;
public interface UserService {
public User getUserById(Integer id);
}
(5)UserServiceImpl类(Spring中对应的类接口的实现)
务必先看图片中的红字!易错点!!!
务必先看图片中的红字!易错点!!!
务必先看图片中的红字!易错点!!!
package com.hqj.serviceimpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.hqj.dao.UserMapper;
import com.hqj.model.User;
import com.hqj.service.UserService;
@Service("userService")
public class UserServiceImpl implements UserService {
@Autowired
private UserMapper userMapper;
public User getUserById(Integer id) {
// TODO Auto-generated method stub
return userMapper.selectByPrimaryKey(id);
}
public UserMapper getUserMapper() {
return userMapper;
}
public void setUserMapper(UserMapper userMapper) {
this.userMapper = userMapper;
}
}
(6)测试类
务必先看图片中的红字!易错点!!!
务必先看图片中的红字!易错点!!!
务必先看图片中的红字!易错点!!!
package com.hqj.test;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.hqj.model.User;
import com.hqj.service.UserService;
public class test1 {
@Test
public void testsearch() {
ApplicationContext ctx = null;
ctx = new ClassPathXmlApplicationContext("spring-mybatis.xml");
UserService userService = (UserService) ctx.getBean("userService");
User user = userService.getUserById(1);
System.out.println(user);
}
}
(7)spring-mybatis.xml配置文件(最重要的配置)
务必先看图片中的红字!易错点!!!
务必先看图片中的红字!易错点!!!
务必先看图片中的红字!易错点!!!
<?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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
<!-- 自动扫描 -->
<context:component-scan base-package="com.hqj.serviceimpl" />
<!-- 引入配置文件 -->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:jdbc.properties" />
</bean>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${driver}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
</bean>
<!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!-- 自动扫描mapping.xml文件 -->
<property name="mapperLocations" value="classpath:com/hqj/mapping/*.xml"></property>
</bean>
<!-- DAO接口所在包名,Spring会自动查找其下的类 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.hqj.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>
<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
</beans>
测试成功的结果如下:
标签:接口 bug xsd 数据库 sql his ati nts package
原文地址:https://www.cnblogs.com/kkdn/p/8941122.html