springboot 0709

去年6月进入新的公司，正好碰上项目重构java，采用的技术是ssm，现在打算是springboot重构一下，记录一下springboot的学习步骤

首先一些简单的demo我就不列了，直接从项目结构来看项目目前分为2个moudle，但是以后肯定会继续补充，目前项目分为 smaug_api 和smaug_provider两个模块， api负责接口的定义，provider负责接口的实现。整个项目采用gradle 来构建

来看一下项目基础架构

好了，现在看一下项目的gradle文件大概是个什么样子哈哈

subprojects {apply plugin: 'java'apply plugin: 'maven'group 'gold_smaug'version '1.0-SNAPSHOT'targetCompatibility = 1.8sourceCompatibility = 1.8[compileJava, compileTestJava].each() {//it.options.compilerArgs += ["-Xlint:unchecked", "-Xlint:deprecation", "-Xlint:-options"]it.options.encoding = "UTF-8"}repositories {mavenLocal()maven {url 'http://maven.aliyun.com/nexus/content/groups/public/'}mavenCentral()}task sourcesJar(type: Jar, dependsOn: classes) {classifier = 'sources'from sourceSets.main.allSource}artifacts {archives sourcesJar}sourceSets {main {java {srcDirs = ['src/main/java', 'src/main/thrift-java']}resources {srcDirs = ['src/main/resources']}}test {java {srcDirs = ['src/test/java', 'src/test/thrift']}resources {srcDirs = ['src/test/resources']}}}configurations.all {resolutionStrategy.cacheChangingModulesFor 1, 'minutes'}dependencies {compile('org.springframework.boot:spring-boot-starter:1.5.2.RELEASE') {exclude(module: 'spring-boot-starter-logging')}compile 'com.alibaba:dubbo:2.8.5-SNAPSHOT'compile "org.springframework.boot:spring-boot-starter-jersey:1.5.1.RELEASE"compile 'org.projectlombok:lombok:1.16.8'compile 'org.springframework:spring-core:4.2.5.RELEASE'compile 'org.springframework:spring-context-support:4.2.5.RELEASE'compile 'org.springframework:spring-beans:4.2.5.RELEASE'compile 'org.springframework:spring-oxm:4.2.5.RELEASE'compile "org.springframework:spring-jms:4.2.5.RELEASE"compile 'org.springframework.retry:spring-retry:1.1.2.RELEASE'compile 'org.springframework:spring-context:4.2.5.RELEASE'compile "org.apache.logging.log4j:log4j-api:2.8"compile "org.apache.logging.log4j:log4j-core:2.8"compile 'com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:2.8.9'testCompile "junit:junit:4.12"testCompile 'com.googlecode.thread-weaver:threadweaver:0.2'}
}

现在看一下service_api的 gradle

def artifactId = "smaug_api"dependencies {compile 'javax.validation:validation-api:1.1.0.Final'compile 'javax.ws.rs:javax.ws.rs-api:2.0'compile 'javax.annotation:javax.annotation-api:1.2'compile 'org.jboss.resteasy:resteasy-client:3.0.9.Final'compile 'org.jboss.resteasy:resteasy-jaxrs:3.0.9.Final'compile 'org.jboss.resteasy:resteasy-netty:3.0.14.Final'compile 'org.jboss.resteasy:resteasy-multipart-provider:3.0.14.Final'compile 'org.codehaus.jackson:jackson-core-asl:1.9.13'compile 'com.esotericsoftware.kryo:kryo:2.24.0'compile 'de.javakaffee:kryo-serializers:0.37'compile 'org.apache.thrift:libthrift:0.9.3'
}

and smaug_provider的 gradle

apply plugin: 'application'def artifactId = "smaug_provider"
def env = System.getProperty("env") ?: "test"sourceSets {main {resources {srcDirs = ["src/main/resources", "src/main/profile/$env"]}}
}dependencies {compile(project(":smaug_api"))compile('org.springframework.boot:spring-boot-starter:1.5.2.RELEASE') {exclude(module: 'spring-boot-starter-logging')}compile 'org.springframework.boot:spring-boot-starter-web:1.5.2.RELEASE'compile "org.springframework.boot:spring-boot-starter-jersey"compile 'org.jboss.resteasy:resteasy-client:3.0.9.Final'compile 'org.jboss.resteasy:resteasy-jaxrs:3.0.9.Final'compile 'org.jboss.resteasy:resteasy-netty:3.0.14.Final'compile 'com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:2.8.9'compile 'com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.8.9'}processResources {exclude { "**/*.*" }
}task pack(type: Copy, dependsOn: [clean, installDist]) {sourceSets.main.resources.srcDirs.each {from itinto "$buildDir/install/$artifactId/lib/resources"}
}mainClassName = 'smaug.service.provider.starts.TestStartApplication'

然后我打算用 spring-boot-starter-jersey 来取代mvc 构建接口层和实现层的分离
细心的小伙伴已经发现了gradle 文件里有dependencies

compile "org.springframework.boot:spring-boot-starter-jersey"

下面开始放大招了哈
首先我定义了一个 TestService

package smaug.service.api;/*** Created by naonao on 17/7/9.*/
import com.alibaba.dubbo.rpc.protocol.rest.support.ContentType;
import smaug.service.vo.UserEntity;import javax.ws.rs.*;
import javax.ws.rs.core.MediaType;@Path("test")
@Consumes({MediaType.APPLICATION_JSON, MediaType.TEXT_XML})
@Produces({ContentType.APPLICATION_JSON_UTF_8, ContentType.TEXT_XML_UTF_8})
public interface TestService {@POST@Path("ping")UserEntity ping();
}

然后我又实现了这个接口

package smaug.service.provider.impl;import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import smaug.service.api.TestService;
import smaug.service.vo.UserEntity;/*** Created by naonao on 17/7/9.*/
@Service("testService")
public class TestServiceImpl implements TestService {private Logger logger = LoggerFactory.getLogger(TestServiceImpl.class);@Overridepublic UserEntity ping() {UserEntity user = new UserEntity();user.setUserId(1);user.setName("闹闹");return user;}
}

启动文件如下

package smaug.service.provider.starts;import org.glassfish.jersey.servlet.ServletContainer;
import org.glassfish.jersey.servlet.ServletProperties;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import smaug.service.provider.config.JerseyConfig;/*** Created by naonao on 17/7/9.*/
@SpringBootApplication
@EnableAutoConfiguration
public class TestStartApplication {public static void main(String[] args) {SpringApplication.run(TestStartApplication.class, args);}//    @Bean
//    public ServletRegistrationBean jerseyServlet() {
//        ServletRegistrationBean registration = new ServletRegistrationBean(new ServletContainer(), "/*");
//        // our rest resources will be available in the path /rest/*
//        registration.addInitParameter(ServletProperties.JAXRS_APPLICATION_CLASS, JerseyConfig.class.getName());
//        return registration;
//    }
}

运行项目，然后赶紧试试刚刚那个接口如何(满怀期待)

{"timestamp": 1499691013884,"status": 404,"error": "Not Found","message": "No message available","path": "/smaug/test/ping"
}

然而 404 ，是因为接口并没有被启动类扫描到
然后我们该咋办捏 —– 修改启动类

package smaug.service.provider.starts;import org.glassfish.jersey.servlet.ServletContainer;
import org.glassfish.jersey.servlet.ServletProperties;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import smaug.service.provider.config.JerseyConfig;/*** Created by naonao on 17/7/9.*/
@SpringBootApplication
@ComponentScan(value = {"smaug.service"})
@EnableAutoConfiguration
public class TestStartApplication {public static void main(String[] args) {SpringApplication.run(TestStartApplication.class, args);}@Beanpublic ServletRegistrationBean jerseyServlet() {ServletRegistrationBean registration = new ServletRegistrationBean(new ServletContainer(), "/*");// our rest resources will be available in the path /rest/*registration.addInitParameter(ServletProperties.JAXRS_APPLICATION_CLASS, JerseyConfig.class.getName());return registration;}
}

然后这次我可以满心欢喜的去看啦

看一下区别，就是把api包添加到启动类下了
其中有个config 就是把smaug.api导入

package smaug.service.provider.config;import org.glassfish.jersey.server.ResourceConfig;
import org.springframework.web.filter.RequestContextFilter;/*** Created by naonao on 17/7/9.*/
public class JerseyConfig extends ResourceConfig {public JerseyConfig() {register(RequestContextFilter.class);//配置restful package.packages("smaug.service.api");}
}

{"userId": 1,"name": "闹闹"
}

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