SpringBoot
化繁为简，简化配置
SpringBoot官方：http://projects.spring.io/spring-boot/
SpringBoot使用介绍：http://blog.csdn.net/isea533/article/details/50278205
Maven项目使用SpringBoot
建议使用 IDEA ,虽然下面是 Eclipse 测试的例子
配置SpringBoot
pom.xml
|
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
|
<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.springboot</groupid> SpringBootTest</artifactid> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>SpringBootTest Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceencoding>UTF-8</project.build.sourceencoding> <java.version>1.8</java.version> <tomcat.version>7.0.55</tomcat.version> </properties> <parent> <groupid>org.springframework.boot</groupid> spring-boot-starter-parent</artifactid> <version>1.3.0.RELEASE</version> </parent> <dependencies> <dependency> <groupid>org.springframework.boot</groupid> spring-boot-starter-web</artifactid> </dependency> </dependencies></project> |
运行程序
运行main方法
SampleController.java
|
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
|
package com.hello;import java.util.Date;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.EnableAutoConfiguration;import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;@RestController@EnableAutoConfiguration (exclude={DataSourceAutoConfiguration.class})public class SampleController { @RequestMapping("/") String home() { return "Hello World!"; } @RequestMapping("/now") String hehe() { return "现在时间：" + (new Date()).toLocaleString(); } public static void main(String[] args) throws Exception { SpringApplication.run(SampleController.class, args); }} |
控制台输出：
|
1
2
3
4
5
6
7
8
9
10
11
12
|
. ____ _ __ _ _ /\ / ___'_ __ _ _(_)_ __ __ _ ( ( )\___ | '_ | '_| | '_ / _` | \/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v1.3.0.RELEASE)2016-12-15 16:30:13.765 INFO 20952 --- [ main] com.hello.SampleController : Starting SampleController on DESKTOP-QSFD0OC with PID 20952 (D:eclipse4.61eclipseworkspaceSpringBootTest argetclasses started by Peng in D:eclipse4.61eclipseworkspaceSpringBootTest)2016-12-15 16:30:13.768 INFO 20952 --- [ main] com.hello.SampleController : No profiles are active2016-12-15 16:30:13.803 INFO 20952 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@149494d8: startup date [Thu Dec 15 16:30:13 CST 2016]; root of context hierarchy... |
在浏览器上输入地址http://localhost:8080/
在浏览器上输入地址http://localhost:8080/now
注意事项
Tomcat问题一
在Java Build Path中，不要加入 Tomcat 运行环境的依赖库，已经在pom.xml中指定了 Tomcat 版本（不指定默认为 Tomcat 8.0.28），从 maven 的依赖包中能找到 Tomcat 的jar包，SpringBoot 自己配有 Tomcat 。
Tomcat问题二
运行 main 方法，出现 Tomcat 不能启动的错误。如下面的异常信息
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
java.net.BindException: Address already in use: bind at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_91] at sun.nio.ch.Net.bind(Unknown Source) ~[na:1.8.0_91] at sun.nio.ch.Net.bind(Unknown Source) ~[na:1.8.0_91]org.apache.catalina.LifecycleException: Failed to start component [Connector[org.apache.coyote.http11.Http11NioProtocol-8080]]Caused by: org.apache.catalina.LifecycleException: service.getName(): "Tomcat"; Protocol handler start failed at org.apache.catalina.connector.Connector.startInternal(Connector.java:1014) ~[tomcat-embed-core-7.0.55.jar:7.0.55] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-7.0.55.jar:7.0.55] ... 13 common frames omittedCaused by: java.net.BindException: Address already in use: bind Unable to start embedded Tomcat servlet container Caused by: java.lang.IllegalStateException: Tomcat connector in failed state |
原因是你运行了程序一次，javaw.exe 会占用你的端口，可以结束该进程。重新运行 main 方法