SpringMVC第四天(SSM整合)

作者：AI编程探险家 | 2024-01-29 16:41:49

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SpringMVC第四天(SSM整合)

SSM整合流程

1.创建工程

2.SSM整合

①Spring

SpringConfig


package com.cacb.config;
 
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.context.annotation.PropertySource;
 
@Configuration
@ComponentScan("com.cacb.service")
@PropertySource("jdbc.properties")
@Import({JdbcConfig.class,MybatisConfig.class})
public class SpringConfig {
}

②MyBatis

MybatisConfig


package com.cacb.config;
 
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.mapper.MapperScannerConfigurer;
import org.springframework.context.annotation.Bean;
 
import javax.sql.DataSource;
 
public class MybatisConfig {
 
    @Bean
    public SqlSessionFactoryBean sqlSessionFactory(DataSource dataSource){
        SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
        factoryBean.setDataSource(dataSource);
        factoryBean.setTypeAliasesPackage("com.cacb.domain");
        return factoryBean;
    }
 
 
    @Bean
    public MapperScannerConfigurer mapperScannerConfigurer(){
        MapperScannerConfigurer msc = new MapperScannerConfigurer();
        msc.setBasePackage("com.cacb.dao");
        return msc;
    }
}

JdbcConfig


package com.cacb.config;
 
import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
 
import javax.sql.DataSource;
 
 
public class JdbcConfig {
    @Value("${jdbc.driver}")
    private String driver;
    @Value("${jdbc.url}")
    private String url;
    @Value("${jdbc.username}")
    private String username;
    @Value("${jdbc.password}")
    private String password;
 
    @Bean
    public DataSource dataSource(){
        DruidDataSource dataSource = new DruidDataSource();
        dataSource.setDriverClassName(driver);
        dataSource.setUrl(url);
        dataSource.setUsername(username);
        dataSource.setPassword(password);
        return dataSource;
    }
}

jbdc.properties


jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql:"//localhost:3306/cary_cacb
jdbc.username=
jdbc.password=

③SpringMVC

ServletConfig


package com.cacb.config;
 
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
 
public class ServletConfig extends AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[]{SpringConfig.class};
    }
 
    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{SpringMvcConfig.class};
    }
 
    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

SpringMvcConfig


package com.cacb.config;
 
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
 
@Configuration
@ComponentScan("com.cacb.controller")
@EnableWebMvc
public class SpringMvcConfig {
}

3.功能模块

表与实体块


package com.cacb.domain;
 
public class Book {
    private  Integer id;
    private String type;
    private String name;
    private String description;
 
    public Integer getId() {
        return id;
    }
 
    public void setId(Integer id) {
        this.id = id;
    }
 
    public String getType() {
        return type;
    }
 
    public void setType(String type) {
        this.type = type;
    }
 
    public String getName() {
        return name;
    }
 
    public void setName(String name) {
        this.name = name;
    }
 
    public String getDescription() {
        return description;
    }
 
    public void setDescription(String description) {
        this.description = description;
    }
 
    @Override
    public String toString() {
        return "Book{" +
                "id=" + id +
                ", type='" + type + '\'' +
                ", name='" + name + '\'' +
                ", description='" + description + '\'' +
                '}';
    }
}

dao(接口+自动代理)


package com.cacb.dao;
 
import com.cacb.domain.Book;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;
 
import java.util.List;
 
public interface BookDao {
    @Insert("insert into tbl_book values(null,#{type},#{name},#{description})")
    public void save(Book book);
 
    @Update("update tbl_boook set type=#{type},name=#{name},description=#{description} where id = #{id}")
    public void update(Book book);
 
    @Delete("delete from tbl_book where id = #{id}")
    public void delete(Integer id);
 
    @Select("select * from tbl_book where id = #{id}")
    public Book getById(Integer id);
 
    @Select("select * from tbl_book")
    public List<Book> getAll();
}

service(接口+实现类)


package com.cacb.service;
 
import com.cacb.domain.Book;
 
import java.util.List;
 
public interface BookService {
 
    public boolean save(Book book);
 
    public boolean update(Book book);
 
    public boolean delete(Integer id);
 
    public Book getById(Integer id);
 
    public List<Book> getAll();
}


package com.cacb.service.impl;
 
 
import com.cacb.dao.BookDao;
import com.cacb.domain.Book;
import com.cacb.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
 
import java.util.List;
 
 
@Service
public class BookServiceImpl implements BookService {
    @Autowired
    private BookDao bookDao;
 
    @Override
    public boolean save(Book book) {
        bookDao.save(book);
        return true;
    }
 
    @Override
    public boolean update(Book book) {
        bookDao.update(book);
        return true;
    }
 
    @Override
    public boolean delete(Integer id) {
        bookDao.delete(id);
        return true;
    }
 
    @Override
    public Book getById(Integer id) {
        bookDao.getById(id);
        return null;
    }
 
    @Override
    public List<Book> getAll() {
        bookDao.getAll();
        return null;
    }
}

业务层接口测试


package com.cacb.service;
 
import com.cacb.config.SpringConfig;
import com.cacb.domain.Book;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = SpringConfig.class)
public class BookServiceTest {
 
    @Autowired
    private BookService bookService;
 
    @Test
    public void testGetById(){
        Book book =    bookService.getById(1);
        System.out.println(book);
    }
}

controller


package com.cacb.controller;
 
import com.cacb.domain.Book;
import com.cacb.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
 
import java.util.List;
 
@RestController
@RequestMapping("/books")
public class BookController {
    @Autowired
    private BookService bookService;
 
    @PostMapping
    public boolean save(@RequestBody Book book) {
        return bookService.save(book);
 
    }
 
    @PutMapping
    public boolean update(@RequestBody Book book) {
        return bookService.update(book);
    }
 
    @DeleteMapping( "/{id}")
    public boolean delete(@PathVariable Integer id) {
        return bookService.delete(id);
    }
 
    @GetMapping("/{id}")
    public Book getById(@PathVariable Integer id) {
        return  bookService.getById(id);
    }
 
    @GetMapping
    public List<Book> getAll() {
        return  bookService.getAll();
    }
}

表现层接口测试

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