写了个spring boot例子，的确是零配置，平时需要写个web例子测试之类的时候，用它还挺方便的。现在开发都搞微服务，api端之前都是dubbo或jesry，现在也可以用spring boot了。
现在记录下spring boot的小例子，maven构造的。
创建个maven项目，jar或war都行，jar的话打包后通过main方法启动，war的话打包后直接扔到tomcat即可。
创建个war的maven项目。
其中pom.xml
<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>com.yhxy.vdc.dbcp</groupId> <artifactId>database_copy</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <properties> <spring_versin>1.4.3.RELEASE</spring_versin> </properties> <!-- <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.4.3.RELEASE</version> </parent> --> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <version>${spring_versin}</version> <exclusions> <exclusion> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <version>${spring_versin}</version> <scope>provided</scope> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.7</version> </dependency> <!-- jsp --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>javax.servlet.jsp-api</artifactId> <version>2.2.1</version> <scope>provided</scope> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> </dependency> </dependencies> <build> <sourceDirectory>src</sourceDirectory> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.1</version> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> </plugins> </build> </project> 我把parent注释掉了，使用的话，pom.xml文件报错，不知道是不是本地环境问题，去掉也无所谓。
controller的部分代码
@RestController @EnableAutoConfiguration @RequestMapping("/dbcp") public class DatabaseCopyController { private static Logger LOG =Logger.getLogger(DatabaseCopyController.class.getName()); @RequestMapping("/hello") @ResponseBody public String hello(HttpServletRequest request){ LOG.info("os=" + System.getProperty("os.name")); return "hello...."; }再写个Application.java
package com.yhxy.vdc.dbcp; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.builder.SpringApplicationBuilder; import org.springframework.boot.web.support.SpringBootServletInitializer; @SpringBootApplication public class Application extends SpringBootServletInitializer{ @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { return application.sources(Application.class); } public static void main(String[] args) throws Exception { SpringApplication.run(Application.class, args); } } 看到这里有个main方法了吗？说明只要直接run就可以把这项目运行起来了。就不贴运行起来的日志了。
如果是直接run的方式运行的话，会使用spring boot里内嵌的tomcat或jetty（还没进行研究）。
如果不想使用内嵌的tomcat，而是使用自己的tomcat（方便优化之类的），那只要把项目打包war后扔进自己的tomcat即可。
日志配置，spring boot是默认使用logback.xml的，所以想自定义的话，在resources下自定义个logback.xml,比如
<!-- Logback configuration. See http://logback.qos.ch/manual/index.html --> <configuration scan="true" scanPeriod="10 seconds"> <include resource="org/springframework/boot/logging/logback/base.xml" /> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <!-- encoders are assigned the type ch.qos.logback.classic.encoder.PatternLayoutEncoder by default --> <encoder> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern> </encoder> </appender> <appender name="INFO_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"> <File>${LOG_PATH}/info.log</File> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${LOG_PATH}/info-%d{yyyyMMdd}.log.%i</fileNamePattern> <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"> <maxFileSize>500MB</maxFileSize> </timeBasedFileNamingAndTriggeringPolicy> <maxHistory>2</maxHistory> </rollingPolicy> <layout class="ch.qos.logback.classic.PatternLayout"> <Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} -%msg%n </Pattern> </layout> </appender> <appender name="ERROR_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"> <filter class="ch.qos.logback.classic.filter.ThresholdFilter"> <level>ERROR</level> </filter> <File>${LOG_PATH}/error.log</File> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${LOG_PATH}/error-%d{yyyyMMdd}.log.%i </fileNamePattern> <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"> <maxFileSize>500MB</maxFileSize> </timeBasedFileNamingAndTriggeringPolicy> <maxHistory>2</maxHistory> </rollingPolicy> <layout class="ch.qos.logback.classic.PatternLayout"> <Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} -%msg%n </Pattern> </layout> </appender> <root level="INFO"> <appender-ref ref="STDOUT" /> <appender-ref ref="INFO_FILE" /> <appender-ref ref="ERROR_FILE" /> </root> </configuration>再创建个application.properties文件，指定logback.xml位置
logging.config=classpath:logback.xml logging.path=/logs具体的更多信息可以查询的官网
