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Spring Boot 快速配置

[日期:2018-01-03] 来源:Linux社区  作者:alamongo [字体: ]

Spring Boot应用的快速构建

本文使用Maven方式快速构建Spring Boot应用

几分钟教程

这里, 我借助IDEA快速建立一个maven项目 (你也可以通过手动或者eclipse创建)

1.1 New Project

1.1.1 创建一个新项目, 使用maven的方式

1.1.2 填写一些应用相关的信息, GroupId, ArtifactId

1.1.3 填写项目保存的本地路径, 点击Finish

1.1.4 如上操作, 创建完成一个空的Maven项目

1.2 引入Spring Boot的依赖

1.2.1 编辑pom.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>info.chiwm</groupId>
    <artifactId>log4j2</artifactId>
    <version>1.0-SNAPSHOT</version>

    <!--  映入spring boot 依赖 -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.9.RELEASE</version>
    </parent>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>
</project>

1.2.2 编写项目启动的主入口代码

./src/java/main 目录新建目录, 例如 info/chiwm/boot . 所有的代码都在该目录下编辑, 这里定义为 代码根目录

创建java文件 Application.java 作为入口文件, 编码如下

package info.chiwm.boot;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * @author chiwm@kuyumall.com
 * @ClassName: Application
 * @Description:
 * @date 2018/1/3 上午11:29
 */
@SpringBootApplication(scanBasePackages = "info.chiwm.log4j2")
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

可以直接Application.java中编写controller业务逻辑并且启动.

1.2.3 编写 controller 层业务逻辑

但这里我将controller模块的逻辑编排在相对应的目录下, 可以使示例代码组织得更加明了

在 `代码根目录` 下创建目录 `controller`, 在该目录下创建示例controller , `JsonController.java`

package info.chiwm.boot.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author wanminchi@gmail.com
 * @ClassName: JsonController
 * @Description:
 * @date 2018/1/3 下午1:11
 */

@RestController
@RequestMapping("/json")
public class JsonController {

    @RequestMapping(value = "/get", method = RequestMethod.GET)
    @ResponseBody
    public String getJson(HttpServletRequest req, HttpServletResponse res) {
        return "{\"name\":\"chi\"}";
    }
}

1.3 启动项目

在IDEA中, RUN Application.java即可启动.


  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.5.9.RELEASE)

2018-01-03 13:35:23.092  INFO 78070 --- [           main] info.chiwm.boot.Application              : Starting Application on chiwanmindeMacBook-Pro.local with PID 78070 (/Users/chiwanmin/code/java/boot/target/classes started by chiwanmin in /Users/chiwanmin/code/java/boot)
2018-01-03 13:35:23.096  INFO 78070 --- [           main] info.chiwm.boot.Application              : No active profile set, falling back to default profiles: default
2018-01-03 13:35:23.192  INFO 78070 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@74a10858: startup date [Wed Jan 03 13:35:23 CST 2018]; root of context hierarchy
2018-01-03 13:35:25.083  INFO 78070 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2018-01-03 13:35:25.092  INFO 78070 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2018-01-03 13:35:25.093  INFO 78070 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.23
2018-01-03 13:35:25.155  INFO 78070 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2018-01-03 13:35:25.155  INFO 78070 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1968 ms
2018-01-03 13:35:25.258  INFO 78070 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Mapping servlet: 'dispatcherServlet' to [/]
2018-01-03 13:35:25.261  INFO 78070 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-01-03 13:35:25.261  INFO 78070 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-01-03 13:35:25.261  INFO 78070 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-01-03 13:35:25.261  INFO 78070 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2018-01-03 13:35:25.645  INFO 78070 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@74a10858: startup date [Wed Jan 03 13:35:23 CST 2018]; root of context hierarchy
2018-01-03 13:35:25.712  INFO 78070 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/json/get],methods=[GET]}" onto public java.lang.String info.chiwm.boot.controller.JsonController.getJson(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2018-01-03 13:35:25.715  INFO 78070 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2018-01-03 13:35:25.715  INFO 78070 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2018-01-03 13:35:25.740  INFO 78070 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-01-03 13:35:25.741  INFO 78070 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-01-03 13:35:25.776  INFO 78070 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-01-03 13:35:25.912  INFO 78070 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
2018-01-03 13:35:25.993  INFO 78070 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2018-01-03 13:35:25.999  INFO 78070 --- [           main] info.chiwm.boot.Application              : Started Application in 3.522 seconds (JVM running for 4.575)
2018-01-03 13:55:15.625  INFO 78070 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring FrameworkServlet 'dispatcherServlet'
2018-01-03 13:55:15.626  INFO 78070 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : FrameworkServlet 'dispatcherServlet': initialization started
2018-01-03 13:55:15.660  INFO 78070 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : FrameworkServlet 'dispatcherServlet': initialization completed in 34 ms

服务端启动, Maven方式打包, 命令启动也可..

本文永久更新链接地址http://www.linuxidc.com/Linux/2018-01/150056.htm

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