标签：ble result contex from status web ini mys let
项目mybatis操作数据库参考：
http://how2j.cn/k/springboot/springboot-mybatis/1649.html?p=78908
junit对controller层测试参考：
https://www.cnblogs.com/PollyLuo/p/9630822.html
mysql版本：5.5.62
1、kotlin版springboot项目创建
访问https://start.spring.io/， 创建项目demo（maven + kotlin + springboot 2.1.7， 其他默认）。
2、创建数据库及表
create database test; use test; CREATE TABLE category_ ( id int(11) NOT NULL AUTO_INCREMENT, name varchar(30), PRIMARY KEY (id) ) DEFAULT CHARSET=UTF8; insert into category_ values(null,‘category 1‘); insert into category_ values(null,‘category 2‘); insert into category_ values(null,‘category 3‘); insert into category_ values(null,‘category 4‘);
3、将项目demo导入idea，等待maven导入依赖jar包。
修改pom.xml，增加mysql数据库连接jar包。
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.47</version> </dependency>
在src/main/resources包下的application.properties文件中增加数据库访问参数(包括mysql数据库用户名及密码）、端口号等。
server.port=8080 spring.datasource.password=admin spring.datasource.username=root spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=UTF-8&useSSL=false
在com.example.demo目录下新建entity包，创建类Category.kt
package com.example.demo.entity class Category { var id : Int? = null; var name : String? = null; }
修改pom.xml，增加mybatis注解jar包。
<!-- mybatis -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.1.1</version>
</dependency>
在com.example.demo包下创建mapper包，创建接口类CategoryMapper.kt， 实现增、删、改、查。
package com.example.demo.mapper import com.example.demo.entity.Category import org.apache.ibatis.annotations.* @Mapper interface CategoryMapper { @Select(" select * from category_") fun list() : List<Category> @Insert(" insert into category_ values(null, #{name})") fun insert(category: Category) : Int @Delete(" delete from category_ where id = #{id}") fun delete(id : Int) @Update(" update category_ set name=#{name} where id = #{id}") fun update(category: Category) : Int @Select( " select * from category_ where id = #{id}") fun get(id : Int) : Category }
修改pom.xml增加相关依赖，在src/test/kotlin路径下com.example.demo路径下创建类CategoryMapperTest.kt，并执行相关测试。
<!-- https://mvnrepository.com/artifact/org.jetbrains.kotlin/kotlin-test-junit5 --> <dependency> <groupId>org.jetbrains.kotlin</groupId> <artifactId>kotlin-test-junit5</artifactId> <version>1.2.70</version> <scope>test</scope> </dependency>
package com.example.demo import com.example.demo.mapper.CategoryMapper import org.junit.Assert import org.springframework.boot.test.context.SpringBootTest import javax.annotation.Resource import kotlin.test.Test @SpringBootTest class CategoryMapperTest { @Resource private lateinit var categoryMapper1: CategoryMapper @Resource private val categoryMapper2: CategoryMapper? = null @Test fun test() { val size1 = categoryMapper1.list().size; val size2 = categoryMapper2!!.list().size; Assert.assertEquals(size1, size2) } }
4、修改pom.xml，添加web相关依赖。
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
在src/main/kotlin目录下com.example.demo包下新建controller包，创建kotlin类HelloController.kt
package com.example.demo.controller import org.springframework.web.bind.annotation.GetMapping import org.springframework.web.bind.annotation.RestController @RestController class HelloController { @GetMapping("/hello") fun hello() : String { return "hello"; } }
修改pom.xml, 添加单元测试相关依赖。
<!-- https://mvnrepository.com/artifact/org.jetbrains.kotlin/kotlin-test-junit5 --> <dependency> <groupId>org.jetbrains.kotlin</groupId> <artifactId>kotlin-test-junit5</artifactId> <version>1.2.70</version> <scope>test</scope> </dependency>
在src/test/kotlin路径下 com.example.demo包下创建kotlin类HelloControllerTest.kt
package com.example.demo import org.junit.jupiter.api.Test import org.springframework.boot.test.context.SpringBootTest import org.springframework.http.HttpMethod import org.springframework.test.context.web.WebAppConfiguration import org.springframework.test.web.servlet.request.MockMvcRequestBuilders import org.springframework.test.web.servlet.result.MockMvcResultMatchers.status import org.springframework.test.web.servlet.setup.MockMvcBuilders import org.springframework.web.context.WebApplicationContext import javax.annotation.Resource @SpringBootTest @WebAppConfiguration class HelloControllerTest { @Resource private lateinit var wac : WebApplicationContext @Test fun test() { val mockMvc = MockMvcBuilders.webAppContextSetup(wac).build() val result = mockMvc.perform(MockMvcRequestBuilders.request(HttpMethod.GET, "/hello")) .andExpect(status().isOk) .andDo(::println) .andReturn().response.contentAsString; println(result) } }
点击HelloControllerTest类前的三角号，即可执行单元测试，在下方窗口看到输出结果“hello”。
kotlin + springboot整合mybatis操作mysql数据库及单元测试
标签：ble result contex from status web ini mys let
原文地址：https://www.cnblogs.com/wushengwuxi/p/11324702.html
