2024/2/26日 日志 第一次测试案例分析(3)--基础准备
1.2024/10/16 日 日志 --》关于MySQL的中 基础操作的整理以及 DQL的初步学习笔记与整理2.2024/10/17日 日志 --》关于MySQL中的 约束、多表查询的初步学习笔记与整理3.2024/10/18日 日志 --》关于MySQL中的 事务 以及JDBC的初步学习笔记与整理4.2024/10/19日 日志--》关于MySQL中 JDBC的API 详解的整理简述5.2024/10/21 日 日志 --》关于Mysql中的数据库连接池 简述笔记整理6.2024/10/22日 日志 --》关于Maven的基础学习 笔记整理7.2024/10/23日 日志--》关于Maven的基础学习--2 坐标与依赖范围8.2024/10/24日 日志 --》关于Mybatis的学习笔记整理 - 环境与性质 以及ResultMap9.2024/10/25日 日志 --》关于使用Mybatis进行增删改查 ---1 查询10.2024/10/26 日 使用Mybatic --》关于Mybatis 进行增删改查 ---2 添加、修改与删除11.2024/10/28日 使用Mybatic --》关于Mybatis 的参数传递与注解开发12.2024/10/29 HTML --》关于HTML的快速入门与标签13.2024/10/30 日 日志 --》关于CSS的学习14.2024/11/1日 日志 关于JavaScript简介&引入方式 以及基础语法的学习15.2024/11/4日 日志 关于JavaScript 变量、数据类型、类型转换和流程控制语句以及对象的学习16.2024/11/5日 日志 关于BOM浏览器对象模型和DOM文档对象模型的学习与笔记整理17.2024/11/6日 日志 正则表达式,web与HTTP18.2024/11/7日 日志 Tomcat简介&基本使用19.2024/11/8日 日志 关于Servlet ----(上)20.2024/11/11日 日志 关于Servlet ----HttpServlet(下)21.2024/11/12日 日志 关于Servlet ---- Request(请求)& Response(响应) 的补充22.2024/11/13日 日志 代码优化 以及 JSP 的快速入门、原理、脚本、缺点 和 EL表达式 以及 JSTL标签23.2024/11/14日 日志 关于 MVC 分层开发模式24.2024/11/15日 日志 关于 会话跟踪技术--- Cookie & Session25.2024/11/20日 日志 关于 Filter & Listener26.2024/11/21日 日志 关于AJAX & Axious异步框架 & JSON27.2024/11/27日 日志 关于Vue && Element28.JavaWeb案例整体分析---》差旅费报销管理信息系统->>题目详情29.JavaWeb案例整体分析---》差旅费报销管理信息系统->>登录与注册30.JavaWeb案例整体分析---》差旅费报销管理信息系统->>数据库操作和Mybatis配置以及pom.xml31.JavaWeb案例整体分析---》差旅费报销管理信息系统->>出差申请与报销部分32.2024/1/13日 日志 关于Vue && Element 的后续---》综合案例(1)33.2024/1/14日 日志 关于Vue && Element 的后续---》综合案例(2)34.2024/1/16日 日志 关于Vue && Element 的后续---》综合案例(4)35.2024/1/17日 日志 关于Vue && Element 的后续---》综合案例(5)36.2024/1/18日 日志 关于Vue && Element 的后续---》综合案例(6)37.2024/1/19日 日志 关于Vue && Element 的后续---》综合案例(7)38.2024/1/20日 日志 关于Vue && Element 的后续---》综合案例(8.1)39.2024/1/21日 日志 关于Vue && Element 的后续---》综合案例(8.2)40.2024/1/22日 日志 期末考试案例回顾与分析---》综合案例(1)41.2024/1/23日 日志 期末考试案例回顾与分析---》综合案例(2)42.2024/1/24日 日志 期末考试案例回顾与分析---》综合案例(3)43.2024/1/25日 日志 期末考试案例回顾与分析---》综合案例(4)44.2024/1/26日 日志 期末考试案例回顾与分析---》综合案例(5)45.2024/1/27日 日志 期末考试案例回顾与分析---》综合案例(6)46.2024/2/3日 日志 期末考试案例回顾与分析---》综合案例(7)47.2024/2/4日 日志 期末考试案例回顾与分析---》综合案例(8)48.2024/2/5日 日志 期末考试案例回顾与分析---》综合案例(9)49.2024/2/6日 日志 期末考试案例回顾与分析---》综合案例(10)50.2024/2/7日 日志 期末考试案例回顾与分析---》综合案例(汇总)51.2024/2/24日 日志 第一次测试案例分析(1)--题目52.2024/2/25日 日志 第一次测试案例分析(2)--数据库层面
53.2024/2/26日 日志 第一次测试案例分析(3)--基础准备
54.2024/2/27日 日志 第一次测试案例分析(4)--登录与注册和仓库方面Pojo
Material
点击查看代码
package com.Moonbeams.pojo;
public class Material {
private Integer id;
private String materialName;
private String description;
private String materialType;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getMaterialName() {
return materialName;
}
public void setMaterialName(String materialName) {
this.materialName = materialName;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getMaterialType() {
return materialType;
}
public void setMaterialType(String materialType) {
this.materialType = materialType;
}
@Override
public String toString() {
return "Material{" +
"id=" + id +
", materialName='" + materialName + '\'' +
", description='" + description + '\'' +
", materialType='" + materialType + '\'' +
'}';
}
}
MaterialDetails
点击查看代码
package com.Moonbeams.pojo;
import com.google.protobuf.Internal;
public class MaterialDetails {
private long id;
private String createType;
private Integer quantity;
private String unit;
private Integer storehouseId;
private Integer materialId;
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getCreateType() {
return createType;
}
public void setCreateType(String createType) {
this.createType = createType;
}
public Integer getQuantity() {
return quantity;
}
public void setQuantity(Integer quantity) {
this.quantity = quantity;
}
public String getUnit() {
return unit;
}
public void setUnit(String unit) {
this.unit = unit;
}
public Integer getStorehouseId() {
return storehouseId;
}
public void setStorehouseId(Integer storehouseId) {
this.storehouseId = storehouseId;
}
public Integer getMaterialId() {
return materialId;
}
public void setMaterialId(Integer materialId) {
this.materialId = materialId;
}
@Override
public String toString() {
return "MaterialDetails{" +
"id=" + id +
", createType='" + createType + '\'' +
", quantity=" + quantity +
", unit='" + unit + '\'' +
", storehouseId=" + storehouseId +
", materialId=" + materialId +
'}';
}
}
Storehouse
点击查看代码
package com.Moonbeams.pojo;
public class Storehouse {
private Integer id;
private String storehouseName;
private String description;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getStorehouseName() {
return storehouseName;
}
public void setStorehouseName(String storehouseName) {
this.storehouseName = storehouseName;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
@Override
public String toString() {
return "Storehouse{" +
"id=" + id +
", storehouseName='" + storehouseName + '\'' +
", description='" + description + '\'' +
'}';
}
}
User
点击查看代码
package com.Moonbeams.pojo;
public class User {
private Integer id;
private String username;
private String password;
private String identify;
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;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getIdentify() {
return identify;
}
public void setIdentify(String identify) {
this.identify = identify;
}
@Override
public String toString() {
return "User{" +
"id=" + id +
", username='" + username + '\'' +
", password='" + password + '\'' +
", identify='" + identify + '\'' +
'}';
}
}
AdministratorService
点击查看代码
package com.Moonbeams.service;
import com.Moonbeams.mapper.MaterialDetailsMapper;
import com.Moonbeams.mapper.MaterialMapper;
import com.Moonbeams.mapper.StorehouseMapper;
import com.Moonbeams.pojo.Material;
import com.Moonbeams.pojo.MaterialDetails;
import com.Moonbeams.pojo.Storehouse;
import com.Moonbeams.util.SqlSessionFactoryUtils;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import java.util.ArrayList;
import java.util.List;
public class AdministratorService {
SqlSessionFactory factory = SqlSessionFactoryUtils.getSqlSessionFactory();
public void addStorehouse(Storehouse storehouse) {
try(SqlSession sqlSession = factory.openSession()) {
StorehouseMapper storehouseMapper = sqlSession.getMapper(StorehouseMapper.class);
storehouseMapper.addStore(storehouse);
sqlSession.commit();
}
}
public void deleteStorehouseById(int id) {
try(SqlSession sqlSession = factory.openSession()) {
StorehouseMapper storehouseMapper = sqlSession.getMapper(StorehouseMapper.class);
storehouseMapper.deleteStoreById(id);
sqlSession.commit();
}
}
public void updateStorehouse(Storehouse storehouse) {
try(SqlSession sqlSession = factory.openSession()) {
StorehouseMapper storehouseMapper = sqlSession.getMapper(StorehouseMapper.class);
storehouseMapper.modifyStore(storehouse);
sqlSession.commit();
}
}
public void modifyStoreDescription(Storehouse storehouse){
try(SqlSession sqlSession = factory.openSession()) {
StorehouseMapper storehouseMapper = sqlSession.getMapper(StorehouseMapper.class);
storehouseMapper.modifyStoreDescription(storehouse);
sqlSession.commit();
}
}
public List<MaterialDetails> getMaterialDetailsByMaterialId(int id) {
try(SqlSession sqlSession = factory.openSession()) {
MaterialDetailsMapper materialDetailsMapper = sqlSession.getMapper(MaterialDetailsMapper.class);
return materialDetailsMapper.getMaterialDetailsByMaterialId(id);
}
}
public MaterialDetails getMaterialDetailsByMaterialIdAndType(int id) {
try(SqlSession sqlSession = factory.openSession()) {
MaterialDetailsMapper materialDetailsMapper = sqlSession.getMapper(MaterialDetailsMapper.class);
System.out.println("Searching for materialId: " + id);
return materialDetailsMapper.getMaterialDetailsByMaterialIdAndType(id);
}
}
public int getStorehouseIdByMaterialId(int materialId) {
try(SqlSession sqlSession = factory.openSession()) {
MaterialDetailsMapper materialDetailsMapper = sqlSession.getMapper(MaterialDetailsMapper.class);
MaterialDetails materialDetails = materialDetailsMapper.getMaterialDetailsByMaterialIdAndType(materialId);
return materialDetails.getStorehouseId();
}
}
public void modifyMaterialDetailsQuantity(MaterialDetails materialDetails) {
try(SqlSession sqlSession = factory.openSession()) {
MaterialDetailsMapper materialDetailsMapper = sqlSession.getMapper(MaterialDetailsMapper.class);
materialDetailsMapper.modifyMaterialDetailsQuantity(materialDetails);
sqlSession.commit();
}
}
public Storehouse getStorehouseById(int id) {
try(SqlSession sqlSession = factory.openSession()) {
StorehouseMapper storehouseMapper = sqlSession.getMapper(StorehouseMapper.class);
Storehouse storehouse = storehouseMapper.getStoreById(id);
return storehouse;
}
}
public List<Storehouse> getAllStorehouse() {
try(SqlSession sqlSession = factory.openSession()) {
StorehouseMapper storehouseMapper = sqlSession.getMapper(StorehouseMapper.class);
List<Storehouse> storehouses= storehouseMapper.getStorehouseList();
return storehouses;
}
}
public void addMaterial(Material material) {
try(SqlSession sqlSession = factory.openSession()) {
MaterialMapper materialMapper = sqlSession.getMapper(MaterialMapper.class);
materialMapper.addMaterial(material);
sqlSession.commit();
}
}
public void deleteMaterialById(int id) {
try(SqlSession sqlSession = factory.openSession()) {
MaterialMapper materialMapper = sqlSession.getMapper(MaterialMapper.class);
List<Integer>MaterialIds = getAllMaterialId();
boolean flag = true;
for(Integer MaterialId : MaterialIds) {
if (MaterialId == id) {
flag = false;
break;
}
}
if(flag) {
materialMapper.deleteMaterialById(id);
sqlSession.commit();
}
}
}
public void updateMaterial(Material material) {
try(SqlSession sqlSession = factory.openSession()) {
MaterialMapper materialMapper = sqlSession.getMapper(MaterialMapper.class);
materialMapper.modifyMaterial(material);
sqlSession.commit();
}
}
public Material getMaterialById(int id) {
try(SqlSession sqlSession = factory.openSession()) {
MaterialMapper materialMapper = sqlSession.getMapper(MaterialMapper.class);
Material material = materialMapper.getMaterialById(id);
return material;
}
}
public List<Material> getAllMaterial() {
try(SqlSession sqlSession = factory.openSession()) {
MaterialMapper materialMapper = sqlSession.getMapper(MaterialMapper.class);
List<Material> materials = materialMapper.getAllMaterials();
return materials;
}
}
public void addMaterialDetail(MaterialDetails materialDetails) {
try(SqlSession sqlSession = factory.openSession()) {
MaterialDetailsMapper materialDetailsMapper = sqlSession.getMapper(MaterialDetailsMapper.class);
materialDetailsMapper.addMaterialDetails(materialDetails);
sqlSession.commit();
}
}
public List<Integer>getAllMaterialId() {
try(SqlSession sqlSession = factory.openSession()) {
MaterialDetailsMapper materialDetailsMapper = sqlSession.getMapper(MaterialDetailsMapper.class);
List<MaterialDetails> materialDetails = materialDetailsMapper.getAllMaterialDetails();
List<Integer>materialIds = new ArrayList<>();
for(MaterialDetails materialDetail : materialDetails) {
materialIds.add(materialDetail.getMaterialId());
}
return materialIds;
}
}
public void addMaterialDetails(MaterialDetails materialDetails) {
try(SqlSession sqlSession = factory.openSession()) {
MaterialDetailsMapper materialDetailsMapper = sqlSession.getMapper(MaterialDetailsMapper.class);
materialDetailsMapper.addMaterialDetails(materialDetails);
sqlSession.commit();
}
}
public List<MaterialDetails> getAllMaterialDetails() {
try(SqlSession sqlSession = factory.openSession()) {
MaterialDetailsMapper materialDetailsMapper = sqlSession.getMapper(MaterialDetailsMapper.class);
List<MaterialDetails> materialDetails = materialDetailsMapper.getAllMaterialDetails();
return materialDetails;
}
}
}
UserService
点击查看代码
package com.Moonbeams.service;
import com.Moonbeams.mapper.UserMapper;
import com.Moonbeams.pojo.User;
import com.Moonbeams.util.SqlSessionFactoryUtils;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
public class UserService {
SqlSessionFactory factory = SqlSessionFactoryUtils.getSqlSessionFactory();
/**
* 登录方法
* @param username
* @param password
* @return
*/
public User login (String username, String password) {
//2.获取Sqlsession
SqlSession sqlsession = factory.openSession();
//3.获取UserMapper
UserMapper mapper = sqlsession.getMapper(UserMapper.class);
//4.调用方法
User user = mapper.select(username, password);
//释放资源(查询,无需提交事务)
sqlsession.close();
return user;
}
/**
* 注册方法
* @param user
* @return
*/
public boolean register(User user){
//2.获取Sqlsession
SqlSession sqlsession = factory.openSession();
//3.获取Usermapper
UserMapper mapper = sqlsession.getMapper(UserMapper.class);
//4.判断用户名是否存在
User u = mapper.selectByUsername(user.getUsername());
if(u == null){
//用户名不存在
mapper.add(user);
sqlsession.commit();
}
//释放资源
sqlsession.close();
return u == null;
}
public User selectByUsername(String username) {
try (SqlSession session = factory.openSession()) {
UserMapper mapper = session.getMapper(UserMapper.class);
return mapper.selectByUsername(username);
}
}
public void modifyPassword(User user) {
try (SqlSession session = factory.openSession()) {
UserMapper mapper = session.getMapper(UserMapper.class);
mapper.modifyPassword(user);
session.commit();
}
}
public void resetPassword(User user) {
try (SqlSession session = factory.openSession()) {
UserMapper mapper = session.getMapper(UserMapper.class);
mapper.resetPassword(user);
session.commit();
}
}
public void modifyIdentify(User user) {
try (SqlSession session = factory.openSession()) {
UserMapper mapper = session.getMapper(UserMapper.class);
mapper.modifyIdentify(user);
session.commit();
}
}
}
util
CheckCodeUtil
点击查看代码
package com.Moonbeams.util;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Arrays;
import java.util.Random;
/**
* 生成验证码工具类
*/
public class CheckCodeUtil {
public static final String VERIFY_CODES = "123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
private static Random random = new Random();
/**
* 输出随机验证码图片流,并返回验证码值(一般传入输出流,响应response页面端,Web项目用的较多)
*
* @param w
* @param h
* @param os
* @param verifySize
* @return
* @throws IOException
*/
public static String outputVerifyImage(int w, int h, OutputStream os, int verifySize) throws IOException {
String verifyCode = generateVerifyCode(verifySize);
outputImage(w, h, os, verifyCode);
return verifyCode;
}
/**
* 使用系统默认字符源生成验证码
*
* @param verifySize 验证码长度
* @return
*/
public static String generateVerifyCode(int verifySize) {
return generateVerifyCode(verifySize, VERIFY_CODES);
}
/**
* 使用指定源生成验证码
*
* @param verifySize 验证码长度
* @param sources 验证码字符源
* @return
*/
public static String generateVerifyCode(int verifySize, String sources) {
// 未设定展示源的字码,赋默认值大写字母+数字
if (sources == null || sources.length() == 0) {
sources = VERIFY_CODES;
}
int codesLen = sources.length();
Random rand = new Random(System.currentTimeMillis());
StringBuilder verifyCode = new StringBuilder(verifySize);
for (int i = 0; i < verifySize; i++) {
verifyCode.append(sources.charAt(rand.nextInt(codesLen - 1)));
}
return verifyCode.toString();
}
/**
* 生成随机验证码文件,并返回验证码值 (生成图片形式,用的较少)
*
* @param width 图片宽度
* @param height 图片高度
* @param outputFile 输出流
* @param verifySize 数据长度
* @return 验证码数据
* @throws IOException
*/
public static String outputVerifyImage(int width, int height, File outputFile, int verifySize) throws IOException {
String verifyCode = generateVerifyCode(verifySize);
outputImage(width, height, outputFile, verifyCode);
return verifyCode;
}
/**
* 生成指定验证码图像文件
*
* @param w
* @param h
* @param outputFile
* @param code
* @throws IOException
*/
public static void outputImage(int w, int h, File outputFile, String code) throws IOException {
if (outputFile == null) {
return;
}
File dir = outputFile.getParentFile();
//文件不存在
if (!dir.exists()) {
//创建
dir.mkdirs();
}
try {
outputFile.createNewFile();
FileOutputStream fos = new FileOutputStream(outputFile);
outputImage(w, h, fos, code);
fos.close();
} catch (IOException e) {
throw e;
}
}
/**
* 输出指定验证码图片流
*
* @param w
* @param h
* @param os
* @param code
* @throws IOException
*/
public static void outputImage(int w, int h, OutputStream os, String code) throws IOException {
int verifySize = code.length();
BufferedImage image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
Random rand = new Random();
Graphics2D g2 = image.createGraphics();
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
// 创建颜色集合,使用java.awt包下的类
Color[] colors = new Color[5];
Color[] colorSpaces = new Color[]{Color.WHITE, Color.CYAN,
Color.GRAY, Color.LIGHT_GRAY, Color.MAGENTA, Color.ORANGE,
Color.PINK, Color.YELLOW};
float[] fractions = new float[colors.length];
for (int i = 0; i < colors.length; i++) {
colors[i] = colorSpaces[rand.nextInt(colorSpaces.length)];
fractions[i] = rand.nextFloat();
}
Arrays.sort(fractions);
// 设置边框色
g2.setColor(Color.GRAY);
g2.fillRect(0, 0, w, h);
Color c = getRandColor(200, 250);
// 设置背景色
g2.setColor(c);
g2.fillRect(0, 2, w, h - 4);
// 绘制干扰线
Random random = new Random();
// 设置线条的颜色
g2.setColor(getRandColor(160, 200));
for (int i = 0; i < 20; i++) {
int x = random.nextInt(w - 1);
int y = random.nextInt(h - 1);
int xl = random.nextInt(6) + 1;
int yl = random.nextInt(12) + 1;
g2.drawLine(x, y, x + xl + 40, y + yl + 20);
}
// 添加噪点
// 噪声率
float yawpRate = 0.05f;
int area = (int) (yawpRate * w * h);
for (int i = 0; i < area; i++) {
int x = random.nextInt(w);
int y = random.nextInt(h);
// 获取随机颜色
int rgb = getRandomIntColor();
image.setRGB(x, y, rgb);
}
// 添加图片扭曲
shear(g2, w, h, c);
g2.setColor(getRandColor(100, 160));
int fontSize = h - 4;
Font font = new Font("Algerian", Font.ITALIC, fontSize);
g2.setFont(font);
char[] chars = code.toCharArray();
for (int i = 0; i < verifySize; i++) {
AffineTransform affine = new AffineTransform();
affine.setToRotation(Math.PI / 4 * rand.nextDouble() * (rand.nextBoolean() ? 1 : -1), (w / verifySize) * i + fontSize / 2, h / 2);
g2.setTransform(affine);
g2.drawChars(chars, i, 1, ((w - 10) / verifySize) * i + 5, h / 2 + fontSize / 2 - 10);
}
g2.dispose();
ImageIO.write(image, "jpg", os);
}
/**
* 随机颜色
*
* @param fc
* @param bc
* @return
*/
private static Color getRandColor(int fc, int bc) {
if (fc > 255) {
fc = 255;
}
if (bc > 255) {
bc = 255;
}
int r = fc + random.nextInt(bc - fc);
int g = fc + random.nextInt(bc - fc);
int b = fc + random.nextInt(bc - fc);
return new Color(r, g, b);
}
private static int getRandomIntColor() {
int[] rgb = getRandomRgb();
int color = 0;
for (int c : rgb) {
color = color << 8;
color = color | c;
}
return color;
}
private static int[] getRandomRgb() {
int[] rgb = new int[3];
for (int i = 0; i < 3; i++) {
rgb[i] = random.nextInt(255);
}
return rgb;
}
private static void shear(Graphics g, int w1, int h1, Color color) {
shearX(g, w1, h1, color);
shearY(g, w1, h1, color);
}
private static void shearX(Graphics g, int w1, int h1, Color color) {
int period = random.nextInt(2);
boolean borderGap = true;
int frames = 1;
int phase = random.nextInt(2);
for (int i = 0; i < h1; i++) {
double d = (double) (period >> 1)
* Math.sin((double) i / (double) period
+ (6.2831853071795862D * (double) phase)
/ (double) frames);
g.copyArea(0, i, w1, 1, (int) d, 0);
if (borderGap) {
g.setColor(color);
g.drawLine((int) d, i, 0, i);
g.drawLine((int) d + w1, i, w1, i);
}
}
}
private static void shearY(Graphics g, int w1, int h1, Color color) {
int period = random.nextInt(40) + 10; // 50;
boolean borderGap = true;
int frames = 20;
int phase = 7;
for (int i = 0; i < w1; i++) {
double d = (double) (period >> 1)
* Math.sin((double) i / (double) period
+ (6.2831853071795862D * (double) phase)
/ (double) frames);
g.copyArea(i, 0, 1, h1, 0, (int) d);
if (borderGap) {
g.setColor(color);
g.drawLine(i, (int) d, i, 0);
g.drawLine(i, (int) d + h1, i, h1);
}
}
}
}
点击查看代码
package com.Moonbeams.util;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import java.io.IOException;
import java.io.InputStream;
public class SqlSessionFactoryUtils {
private static SqlSessionFactory sqlSessionFactory;
static{
//静态代码块会随着类的加载而自动执行,且只执行一次
try {
String resource = "mybatis-config.xml";
InputStream inputStream = Resources.getResourceAsStream(resource);
sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public static SqlSessionFactory getSqlSessionFactory(){return sqlSessionFactory;}
}
mybatis-config.xml
点击查看代码
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<!--起别名-->
<typeAliases>
<package name="com.Moonbeams.pojo"/>
</typeAliases>
<environments default="development">
<environment id="development">
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<property name="driver" value="com.mysql.cj.jdbc.Driver"/>
<property name="url" value="jdbc:mysql:///test?useSSL=false&allowPublicKeyRetrieval=true&useServerPrepStmts=true&useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai"/>
<property name="username" value="root"/>
<property name="password" value=""/>
</dataSource>
</environment>
</environments>
<mappers>
<!--扫描mapper-->
<package name="com.Moonbeams.mapper"/>
<!--如果不扫描则加载映射文件-->
<!--<mapper resource="Moonbeams/mapper/XXX.xml"/>-->
</mappers>
</configuration>
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