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niumooniumoo
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springboot-data-mybatis-multiple-datasource
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‎springboot-data-mybatis-multiple-datasource/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>2.4.1</version>
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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<groupId>com.wdbyte</groupId>
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<artifactId>springboot-data-mybatis-multiple-datasource</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<name>demo</name>
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<description>Demo project for Spring Boot</description>
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<properties>
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<java.version>1.8</java.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.mybatis.spring.boot</groupId>
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<artifactId>mybatis-spring-boot-starter</artifactId>
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<version>2.1.4</version>
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</dependency>
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<dependency>
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<groupId>mysql</groupId>
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<artifactId>mysql-connector-java</artifactId>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<optional>true</optional>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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<configuration>
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<excludes>
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<exclude>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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</exclude>
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</excludes>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>

‎springboot-data-mybatis-multiple-datasource/src/.DS_Store‎

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‎springboot-data-mybatis-multiple-datasource/src/main/.DS_Store‎

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‎springboot-data-mybatis-multiple-datasource/src/main/java/com/wdbyte/BootApplication.java‎

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package com.wdbyte;
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import org.mybatis.spring.annotation.MapperScan;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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/**
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* <p>
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* Spring Boot 启动类
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* </p>
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*/
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@SpringBootApplication
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public class BootApplication {
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public static void main(String[] args) {
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SpringApplication.run(BootApplication.class, args);
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}
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}
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‎springboot-data-mybatis-multiple-datasource/src/main/java/com/wdbyte/config/PrimaryDataSourceConfig.java‎

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package com.wdbyte.config;
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import javax.sql.DataSource;
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import org.apache.ibatis.session.SqlSessionFactory;
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import org.mybatis.spring.SqlSessionFactoryBean;
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import org.mybatis.spring.SqlSessionTemplate;
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import org.mybatis.spring.annotation.MapperScan;
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import org.springframework.beans.factory.annotation.Qualifier;
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import org.springframework.boot.context.properties.ConfigurationProperties;
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import org.springframework.boot.jdbc.DataSourceBuilder;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.context.annotation.Primary;
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import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
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import org.springframework.jdbc.datasource.DataSourceTransactionManager;
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/**
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* 主数据源配置
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*
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* @author niujinpeng
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* @website: https://www.wdbyte.com
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* @date 2020/12/19
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*/
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@Configuration
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@MapperScan(basePackages = {"com.wdbyte.mapper.primary"}, sqlSessionFactoryRef = "sqlSessionFactory")
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public class PrimaryDataSourceConfig {
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@Bean(name = "dataSource")
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@ConfigurationProperties(prefix = "spring.datasource.primary")
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@Primary
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public DataSource dataSource() {
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return DataSourceBuilder.create().build();
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}
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@Bean(name = "sqlSessionFactory")
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@Primary
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public SqlSessionFactory sqlSessionFactory(@Qualifier("dataSource") DataSource dataSource) throws Exception {
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SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
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bean.setDataSource(dataSource);
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bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/*.xml"));
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return bean.getObject();
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}
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@Bean(name = "transactionManager")
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@Primary
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public DataSourceTransactionManager transactionManager(@Qualifier("dataSource") DataSource dataSource) {
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return new DataSourceTransactionManager(dataSource);
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}
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@Bean(name = "sqlSessionTemplate")
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@Primary
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public SqlSessionTemplate sqlSessionTemplate(@Qualifier("sqlSessionFactory") SqlSessionFactory sqlSessionFactory) {
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return new SqlSessionTemplate(sqlSessionFactory);
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}
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}

‎springboot-data-mybatis-multiple-datasource/src/main/java/com/wdbyte/config/SecondDataSourceConfig.java‎

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package com.wdbyte.config;
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import javax.sql.DataSource;
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import org.apache.ibatis.session.SqlSessionFactory;
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import org.mybatis.spring.SqlSessionFactoryBean;
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import org.mybatis.spring.SqlSessionTemplate;
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import org.mybatis.spring.annotation.MapperScan;
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import org.springframework.beans.factory.annotation.Qualifier;
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import org.springframework.boot.context.properties.ConfigurationProperties;
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import org.springframework.boot.jdbc.DataSourceBuilder;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.ComponentScan;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
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import org.springframework.jdbc.datasource.DataSourceTransactionManager;
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/**
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* 第二个数据源配置
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*
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* @author niujinpeng
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* @website: https://www.wdbyte.com
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* @date 2020/12/19
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*/
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@Configuration
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@MapperScan(basePackages = {"com.wdbyte.mapper.datasource2"}, sqlSessionFactoryRef = "sqlSessionFactory2")
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public class SecondDataSourceConfig {
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@Bean(name = "dataSource2")
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@ConfigurationProperties(prefix = "spring.datasource.datasource2")
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public DataSource dataSource() {
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return DataSourceBuilder.create().build();
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}
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@Bean(name = "sqlSessionFactory2")
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public SqlSessionFactory sqlSessionFactory(@Qualifier("dataSource2") DataSource dataSource) throws Exception {
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SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
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bean.setDataSource(dataSource);
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bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/*.xml"));
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return bean.getObject();
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}
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@Bean(name = "transactionManager2")
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public DataSourceTransactionManager transactionManager(@Qualifier("dataSource2") DataSource dataSource) {
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return new DataSourceTransactionManager(dataSource);
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}
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@Bean(name = "sqlSessionTemplate2")
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public SqlSessionTemplate sqlSessionTemplate(@Qualifier("sqlSessionFactory2") SqlSessionFactory sqlSessionFactory) {
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return new SqlSessionTemplate(sqlSessionFactory);
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}
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}

‎springboot-data-mybatis-multiple-datasource/src/main/java/com/wdbyte/controller/BookController.java‎

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package com.wdbyte.controller;
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import java.util.List;
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import com.wdbyte.domain.Book;
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import com.wdbyte.service.BookService;
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import com.wdbyte.domain.Response;
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import com.wdbyte.utils.ResponseUtill;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RestController;
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/**
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* <p>
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*
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* @Author niujinpeng
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* @Date 2019/1/21 14:16
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*/
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@RestController
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public class BookController {
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@Autowired
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private BookService bookService;
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@GetMapping(value = "/books")
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public Response selectAll() throws Exception {
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List<Book> books = bookService.selectAll();
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return ResponseUtill.success(books);
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}
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}

‎springboot-data-mybatis-multiple-datasource/src/main/java/com/wdbyte/controller/HelloController.java‎

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package com.wdbyte.controller;
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import com.wdbyte.domain.Response;
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import com.wdbyte.utils.ResponseUtill;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.ResponseBody;
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import org.springframework.web.bind.annotation.RestController;
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/**
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* <p>
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* 测试控制器
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*
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* @Author niujinpeng
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* @Date 2018/12/4 14:41
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*/
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@Slf4j
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@RestController
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public class HelloController {
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@Value("${bootapp.description}")
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private String description;
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@RequestMapping("/")
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public String index() {
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log.info(description);
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return "Greetings from Spring Boot!";
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}
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@RequestMapping(value = "/er")
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@ResponseBody
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public Response error(Integer num) throws Exception {
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num = num / num;
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return ResponseUtill.success(num);
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}
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}

‎springboot-data-mybatis-multiple-datasource/src/main/java/com/wdbyte/controller/UserController.java‎

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package com.wdbyte.controller;
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import java.util.List;
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import com.wdbyte.domain.Response;
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import com.wdbyte.domain.User;
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import com.wdbyte.service.UserService;
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import com.wdbyte.utils.ResponseUtill;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.ResponseBody;
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import org.springframework.web.bind.annotation.RestController;
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/**
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* <p>
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*
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* @Author niujinpeng
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* @Date 2018/12/19 17:17
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*/
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@RestController
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public class UserController {
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@Autowired
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private UserService userService;
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@ResponseBody
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@GetMapping(value = "/users")
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public Response selectAll() {
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List<User> userList = userService.selectAll();
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return ResponseUtill.success(userList);
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}
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}

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