自己写spring boot starter

学习了：《spring boot实战》汪云飞著 6.5.4节

pom.xml

       
      
       4.0.0
        
      
       com.stono
        
      
       sboot161
        
      
       1.0-SNAPSHOT
        
      
       jar
        
      
       sboot161
        
      
       http://maven.apache.org
        
          
       
        UTF-8
         
        
          
             
        
         org.springframework.boot
              
        
         spring-boot-autoconfigure
              
        
         1.5.9.RELEASE
            
           
             
        
         junit
              
        
         junit
              
        
         3.8.1
              
        
         test
            
         
      
     

HelloService.java

package com.stono;public class HelloService {    private String msg;    public String sayHello(){        return "Hello"+msg;    }    public String getMsg() {        return msg;    }    public void setMsg(String msg) {        this.msg = msg;    }}

HelloServiceProperties.java

package com.stono;import org.springframework.boot.context.properties.ConfigurationProperties;@ConfigurationProperties(prefix = "hello")public class HelloServiceProperties {    private static final String MSG = "world";    private String msg = MSG;    public String getMsg() {        return msg;    }    public void setMsg(String msg) {        this.msg = msg;    }}

HelloServiceAutoConfiguration.java

package com.stono;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;import org.springframework.boot.context.properties.EnableConfigurationProperties;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;@Configuration@EnableConfigurationProperties(HelloServiceProperties.class)@ConditionalOnClass(HelloService.class)@ConditionalOnProperty(prefix = "hello", value = "enabled", matchIfMissing = true)public class HelloServiceAutoConfiguration {    @Autowired    private HelloServiceProperties helloServiceProperties;    @Bean    @ConditionalOnMissingBean(HelloService.class)    public HelloService helloService(){        HelloService helloService = new HelloService();        helloService.setMsg(helloServiceProperties.getMsg());        return helloService;    }}

编译完毕之后，使用IntelliJ 自带的Edit Configurations... 进行maven 编译设置，参数为 clean package

运行配置好的maven命令即可编译jar包；

如果在terminal中直接运行mvn clean package

会出现错误：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project sboot161: Compilation failure: Compilation failure:[ERROR] 不再支持源选项 1.5。请使用 1.6 或更高版本。[ERROR] 不再支持目标选项 1.5。请使用 1.6 或更高版本。[ERROR] -> [Help 1][ERROR][ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.[ERROR] Re-run Maven using the -X switch to enable full debug logging.[ERROR][ERROR] For more information about the errors and possible solutions, please read the following articles:[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException

学习了：http://blog.csdn.net/sosous/article/details/78312867

进行pom.xml文件修改：

         
      
       UTF-8
          
      
       1.8
          
      
       1.8
        
     

就可以正常运行 mvn clean package了；

运行之后，需要使用mvn install命令将jar包安装本地库：

mvn install:install-file -Dfile=D:\Java\IdeaProjects\sboot161\target\sboot161-1.0-SNAPSHOT.jar -DgroupId=com.stono -DartifactId=sboot161 -Dversion=1.0-SNAPSHOT -Dpackaging=jar

然后在其他项目中就可以添加该pom依赖，在程序中自动引入该HelloService了；