一、配置文件
在开发过程中我们经常会使用一些配置信息,这块配置在application.properties文件中
com.pandabeta.name=Pandabeta
在controller文件中 使用配置信息 添加:
@Value("${com.pandabeta.name}")
private String name;
@RequestMapping("/pandabeta")
public String index() {
return name;
}
运行可看到如下结果:
二、添加日志
在 application.properties 配置输出的地址和输出级别:
#logging.path=C:\\develop\\ide\\log
logging.file=pandabeta
logging.level.com.favorites=DEBUG
logging.level.org.springframework.web=INFO
logging.level.org.hibernate=ERROR
在controller文件中 使用日志记录:
@RestController
public class HelloWorldController {
@Value("${com.pandabeta.name}")
private String name;
public static Log log = LogFactory.getLog(HelloWorldController.class);
@RequestMapping("/pandabeta")
public String index() {
log.info(name);
return name;
}
@RequestMapping("/hello/{name}")
String index(@PathVariable String name) {
return "Hello "+name+"!!!";
}
}
ps:
- 这里若不配置具体的包的日志级别,日志文件信息将为空
- 若只配置logging.path,那么将会在C:\develop\ide\log文件夹生成一个日志文件为spring.log
- 若只配置logging.file,那将会在项目的当前路径下生成一个pandabeta.log日志文件
- logging.path和logging.file同时配置,不会有在这个路径有F:\demo\demo.log日志生成,logging.path和logging.file不会进行叠加
- logging.path和logging.file的value都可以是相对路径或者绝对路径
三、Filter过滤器
在项目中会使用filters用于录调用日志、排除有XSS威胁的字符、鉴权等等。Spring Boot自动添加了OrderedCharacterEncodingFilter和HiddenHttpMethodFilter,并且我们可以自定义Filter。
主要是2个步骤:
- 实现Filter接口,实现Filter方法
- 添加@Configuration 注解,将自定义Filter加入过滤链
@Configuration
public class TestFilter {
public static Log log = LogFactory.getLog(TestFilter.class);
@Bean
public RemoteIpFilter remoteIpFilter() {
return new RemoteIpFilter();
}
@Bean
public FilterRegistrationBean testFilterRegistration() {
FilterRegistrationBean registration = new FilterRegistrationBean();
registration.setFilter(new MyFilter());
registration.addUrlPatterns("/*");
registration.addInitParameter("paramName", "paramValue");
registration.setName("MyFilter");
registration.setOrder(1);
return registration;
}
public class MyFilter implements Filter {
@Override
public void destroy() {
log.info("filter destory");
// TODO Auto-generated method stub
}
@Override
public void doFilter(ServletRequest srequest, ServletResponse sresponse, FilterChain filterChain)
throws IOException, ServletException {
// TODO Auto-generated method stub
HttpServletRequest request = (HttpServletRequest) srequest;
System.out.println("this is MyFilter,url :"+request.getRequestURI());
log.info("filter do before");
filterChain.doFilter(srequest, sresponse);
log.info("filter do after");
}
@Override
public void init(FilterConfig arg0) throws ServletException {
log.info("filter init");
// TODO Auto-generated method stub
}
}
}
运行结果: