Why a maven project, introducing the log4j, console, what also don't print?-CodePudding

I use httpClient, teacher's print
pom will add the

 
 
 
 Org. Apache. Httpcomponents 
 Httpclient 
 4.5.2 & lt;/version> 
 
 
 Org. Slf4j & lt;/groupId> 
 Slf4j - log4j12 & lt;/artifactId> 
 1.7.25 & lt;/version>

The resource under the log4j properties (name right)

 
Log4j. Appender. The CONSOLE=org. Apache. Log4j. ConsoleAppender 
Log4j rootLogger=Error, m 
Log4j. Appender. M=org. Apache. Log4j. ConsoleAppender 
Log4j. Appender. M.l ayout=org.. Apache log4j. PatternLayout 
Log4j. Appender. M.l ayout. ConversionPattern=% d {MM - dd yyyy - HH: MM: ss} % - 5 p % c {1} : % L - % m % n

Then a simple main method, log what all don't print, video in print, but I am also copy him

 
Public class SikiHttpClientDemo {

Public static void main (String [] args) throws IOException {

CloseableHttpClient client=HttpClients. CreateDefault (); 
HttpGet get=new HttpGet (" http://www.sikiedu.com/"); 
//imitation chorm request, some sites will be shielded httpclient, Java keywords such as 
Get. SetHeader (" the user-agent ", "Mozilla/5.0 (Windows NT 10.0; Win64. X64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.83 Safari/537.36 "); 

CloseableHttpResponse response=client. The execute (get); 

HttpEntity entity=response. GetEntity (); 

System. The out. Println (EntityUtils. ToString (entity, "utf-8")); 
} 
}