今天我们尝试spring boot整合scala，并决定建立一个非常简单的spring boot微服务，使用scala作为编程语言进行编码构建。
创建项目
初始化项目
复制代码 代码如下:
mvn archetype:generate -dgroupid=com.edurt.ssi -dartifactid=springboot-scala-integration -darchetypeartifactid=maven-archetype-quickstart -dversion=1.0.0 -dinteractivemode=false
修改pom.xml增加java和scala的支持
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
<project xmlns="http://maven.apache.org/pom/4.0.0" xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xsi:schemalocation="http://maven.apache.org/pom/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelversion>4.0.0</modelversion> <groupid>com.edurt.ssi</groupid> <artifactid>springboot-scala-integration</artifactid> <packaging>jar</packaging> <version>1.0.0</version> <name>springboot-scala-integration</name> <description>springboot scala integration is a open source springboot, scala integration example.</description> <parent> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-parent</artifactid> <version>2.1.3.release</version> <relativepath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceencoding>utf-8</project.build.sourceencoding> <project.reporting.outputencoding>utf-8</project.reporting.outputencoding> <java.version>1.8</java.version> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <!-- dependency config --> <dependency.scala.version>2.12.1</dependency.scala.version> <!-- plugin config --> <plugin.maven.scala.version>3.1.3</plugin.maven.scala.version> </properties> <dependencies> <dependency> <groupid>org.scala-lang</groupid> <artifactid>scala-library</artifactid> <version>${dependency.scala.version}</version> </dependency> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-web</artifactid> </dependency> </dependencies> <build> <sourcedirectory>${project.basedir}/src/main/scala</sourcedirectory> <testsourcedirectory>${project.basedir}/src/test/scala</testsourcedirectory> <plugins> <plugin> <groupid>net.alchim31.maven</groupid> <artifactid>scala-maven-plugin</artifactid> <version>${plugin.maven.scala.version}</version> <executions> <execution> <goals> <goal>compile</goal> <goal>testcompile</goal> </goals> </execution> </executions> </plugin> <plugin> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-maven-plugin</artifactid> </plugin> </plugins> </build></project> |
一个简单的应用类
|
1
2
3
4
5
6
7
8
9
10
11
12
13
|
package com.edurt.ssiimport org.springframework.boot.springapplicationimport org.springframework.boot.autoconfigure.springbootapplication@springbootapplicationclass springbootscalaintegrationobject springbootscalaintegration extends app{ springapplication.run(classof[springbootscalaintegration])} |
添加rest api接口功能
创建一个hellocontroller rest api接口,我们只提供一个简单的get请求获取hello,scala输出信息
|
1
2
3
4
5
6
7
8
9
10
11
12
13
|
package com.edurt.ssi.controllerimport org.springframework.web.bind.annotation.{getmapping, restcontroller}@restcontrollerclass hellocontroller { @getmapping(value = array("hello")) def hello(): string = { return "hello,scala" }} |
修改springbootscalaintegration文件增加以下设置扫描路径
|
1
2
3
|
@componentscan(value = array( "com.edurt.ssi.controller")) |
添加页面功能
修改pom.xml文件增加以下页面依赖
|
1
2
3
4
5
|
<!-- mustache --><dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-mustache</artifactid></dependency> |
修改springbootscalaintegration文件增加以下设置扫描路径componentscan的value字段中
|
1
|
"com.edurt.ssi.view" |
在src/main/resources路径下创建templates文件夹
在templates文件夹下创建一个名为hello.mustache的页面文件
|
1
|
<h1>hello, scala</h1> |
创建页面转换器helloview
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
|
package com.edurt.ssi.viewimport org.springframework.stereotype.controllerimport org.springframework.web.bind.annotation.getmapping@controllerclass helloview { @getmapping(value = array("hello_view")) def helloview: string = { return "hello"; }} |
浏览器访问http://localhost:8080/hello_view即可看到页面内容
添加数据持久化功能
修改pom.xml文件增加以下依赖(由于测试功能我们使用h2内存数据库)
|
1
2
3
4
5
6
7
8
9
10
|
<!-- data jpa and db --><dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-data-jpa</artifactid></dependency><dependency> <groupid>com.h2database</groupid> <artifactid>h2</artifactid> <scope>runtime</scope></dependency> |
修改springbootscalaintegration文件增加以下设置扫描model路径
|
1
2
3
|
@entityscan(value = array( "com.edurt.ssi.model")) |
创建user实体
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
|
package com.edurt.ssi.modelimport javax.persistence.{entity, generatedvalue, id}@entityclass usermodel { @id @generatedvalue var id: long = 0 var name: string = null} |
创建usersupport dao数据库操作工具类
|
1
2
3
4
5
6
7
8
|
package com.edurt.ssi.supportimport com.edurt.ssi.model.usermodelimport org.springframework.data.repository.pagingandsortingrepositorytrait usersupport extends pagingandsortingrepository[usermodel, long] {} |
创建userservice服务类
|
1
2
3
4
5
6
7
8
9
10
11
12
|
package com.edurt.ssi.serviceimport com.edurt.ssi.model.usermodeltrait userservice { /** * save model to db */ def save(model: usermodel): usermodel;} |
创建userserviceimpl实现类
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
package com.edurt.ssi.serviceimport com.edurt.ssi.model.usermodelimport com.edurt.ssi.support.usersupportimport org.springframework.beans.factory.annotation.autowiredimport org.springframework.stereotype.service@service(value = "userservice")class userserviceimpl @autowired() ( val usersupport: usersupport ) extends userservice { /** * save model to db */ override def save(model: usermodel): usermodel = { return this.usersupport.save(model) }} |
创建用户usercontroller进行持久化数据
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
package com.edurt.ssi.controllerimport com.edurt.ssi.model.usermodelimport com.edurt.ssi.service.userserviceimport org.springframework.beans.factory.annotation.autowiredimport org.springframework.web.bind.annotation.{pathvariable, postmapping, requestmapping, restcontroller}@restcontroller@requestmapping(value = array("user"))class usercontroller @autowired()( val userservice: userservice ) { @postmapping(value = array("save/{name}")) def save(@pathvariable name: string): long = { val usermodel = { new usermodel() } usermodel.name = name return this.userservice.save(usermodel).id }} |
使用控制台窗口执行以下命令保存数据
|
1
|
curl -x post http://localhost:8080/user/save/qianmoq |
收到返回结果
1
表示数据保存成功
增加数据读取渲染功能
修改userservice增加以下代码
|
1
2
3
4
|
/** * get all model */def getall(page: pageable): page[usermodel] |
修改userserviceimpl增加以下代码
|
1
2
3
4
5
6
|
/** * get all model */override def getall(page: pageable): page[usermodel] = { return this.usersupport.findall(page)} |
修改usercontroller增加以下代码
|
1
2
|
@getmapping(value = array("list"))def get(): page[usermodel] = this.userservice.getall(pagerequest.of(0, 10)) |
创建userview文件渲染user数据
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
package com.edurt.ssi.viewimport com.edurt.ssi.service.userserviceimport org.springframework.beans.factory.annotation.autowiredimport org.springframework.data.domain.pagerequestimport org.springframework.stereotype.controllerimport org.springframework.ui.modelimport org.springframework.web.bind.annotation.getmapping@controllerclass userview @autowired()( private val userservice: userservice ) { @getmapping(value = array("user_view")) def helloview(model: model): string = { model.addattribute("users", this.userservice.getall(pagerequest.of(0, 10))) return "user" }} |
创建user.mustache文件渲染数据(自行解析返回数据即可)
|
1
|
{{users}} |
浏览器访问http://localhost:8080/user_view即可看到页面内容
增加单元功能
修改pom.xml文件增加以下依赖
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
<!-- test --><dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-test</artifactid> <scope>test</scope> <exclusions> <exclusion> <groupid>junit</groupid> <artifactid>junit</artifactid> </exclusion> <exclusion> <groupid>org.mockito</groupid> <artifactid>mockito-core</artifactid> </exclusion> </exclusions></dependency><dependency> <groupid>org.junit.jupiter</groupid> <artifactid>junit-jupiter-engine</artifactid> <scope>test</scope></dependency> |
创建userservicetest文件进行测试userservice功能
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
package com.edurt.ssiimport com.edurt.ssi.service.userserviceimport org.junit.jupiter.api.testimport org.springframework.beans.factory.annotation.autowiredimport org.springframework.boot.test.context.springboottestimport org.springframework.data.domain.pagerequest@springboottest(webenvironment = springboottest.webenvironment.random_port)class userservicetest @autowired()( private val userservice: userservice) { @test def `get all`() { println(">> assert blog page title, content and status code") val entity = this.userservice.getall(pagerequest.of(0, 1)) print(entity.gettotalpages) }} |
源码地址：github
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://segmentfault.com/a/1190000018357979
