Spring Boot 学习起步 七、Configuration配置

“Yeah It’s on. ”

下面是项目中一些常用的Configuration:

• Spring MVC

  @Bean
  public DispatcherServlet dispatcherServlet() {
      return new DispatcherServlet();
  }

• CharacterEncoding

  @Bean
  public CharacterEncodingFilter characterEncodingFilter() {
      CharacterEncodingFilter filter = new CharacterEncodingFilter();
      filter.setEncoding(characterEncoding);
      filter.setForceEncoding(true);
      return filter;
  }

• RestTemplate

  @Bean
  public RestTemplate restTemplate() {
  	return new RestTemplate();
  }

• Filter

  @Bean
   public FilterRegistrationBean appFilter() {
       FilterRegistrationBean reg = new FilterRegistrationBean();
       reg.setFilter(new AppFilter());
       reg.addUrlPatterns("/*");
       return reg;
   }

• MessageConverter

  @Bean
  public StringHttpMessageConverter stringHttpMessageConverter() {
  	StringHttpMessageConverter stringHttpMessageConverter = new StringHttpMessageConverter(
  			Charset.forName(characterEncoding));
  	return stringHttpMessageConverter;
  }

• JSON转换

  @Bean
  public ObjectMapper jsonMapper(){
  	ObjectMapper objectMapper = new ObjectMapper();
  	objectMapper.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
  
  	return objectMapper;
  }

• 数据源,以Druid为例

  @Bean(initMethod="init",destroyMethod="close")
  @ConfigurationProperties(prefix="datasource.druid")
  public DataSource dataSource() {
  	return new DruidDataSource();
  }
  
  @Value("${datasource.druid.allow}")
  private String druidAllowUrl;
  
  @Value("${datasource.druid.deny}")
  private String druidDenyUrl;
  
  @Bean
  public ServletRegistrationBean statViewServlet() {
  	ServletRegistrationBean reg = new ServletRegistrationBean();
  	reg.setServlet(new StatViewServlet());
  	reg.addUrlMappings("/druid/*");
  	reg.addInitParameter("allow", druidAllowUrl);
  	reg.addInitParameter("deny", druidDenyUrl);
  
  	return reg;
  }

  ##application.properties
  datasource.druid.url=jdbc:oracle:thin:@192.168.1.111:1521:xxx
  datasource.druid.username=xxx
  datasource.druid.password=xxx
  datasource.druid.filters=stat
  datasource.druid.allow=192.168.0.1/24,192.168.0.212
  datasource.druid.deny=192.168.200.1/24

• RequestContextListener

  @Bean
  public RequestContextListener requestContextListener(){
      RequestContextListener requestContextListener = new RequestContextListener();
  
      return requestContextListener;
  }

• 上传文件，文件大小限制

  #写在application.properties 文件中
  #org.springframework.boot.autoconfigure.web.MultipartProperties
  multipart.maxFileSize=10Mb

• 设置项目端口号

  #写在application.properties 文件中
  # 以5100为项目端口号
  server.port=5100