java Logger 的使用

1.导入log4j-1.2.16.jar夹包

 

2.在工程目录的src下复制log4j.properties的文件

文件内容如下：

### direct log messages to stdout ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### direct messages to file hibernate.log ###
#log4j.appender.file=org.apache.log4j.FileAppender
#log4j.appender.file.File=hibernate.log
#log4j.appender.file.layout=org.apache.log4j.PatternLayout
#log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### set log levels - for more verbose logging change 'info' to 'debug' ###

log4j.rootLogger=info,CONSOLE,FILE

#log4j.logger.org.hibernate=info
log4j.logger.org.hibernate=debug

### log HQL query parser activity
#log4j.logger.org.hibernate.hql.ast.AST=debug

### log just the SQL
#log4j.logger.org.hibernate.SQL=debug

### log JDBC bind parameters ###
log4j.logger.org.hibernate.type=info
#log4j.logger.org.hibernate.type=debug

### log schema export/update ###
log4j.logger.org.hibernate.tool.hbm2ddl=debug

log4j.addivity.org.apache=true
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.Threshold=ERROR
log4j.appender.CONSOLE.Target=System.out
#log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout=org.apache.log4j.SimpleLayout
#log4j.appender.CONSOLE.layout.ConversionPattern=[framework] %d - %c -%-4r [%t] %-5p %c %x - %m%n
#log4j.appender.CONSOLE.layout.ConversionPattern=[start]%d{DATE}[DATE]%n%p[PRIORITY]%n%x[NDC]%n%t[THREAD] n%c[CATEGORY]%n%m[MESSAGE]%n%n

log4j.appender.FILE=org.apache.log4j.DailyRollingFileAppender

log4j.appender.FILE.File=D\:/hooypay/log4j/file.log
log4j.appender.FILE.Append=true
log4j.appender.FILE.DatePattern='.'yyyy-MM-dd'.log'

#log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout=org.apache.log4j.SimpleLayout
### log HQL parse trees
#log4j.logger.org.hibernate.hql=debug

### log cache activity ###
#log4j.logger.org.hibernate.cache=debug

### log transaction activity
#log4j.logger.org.hibernate.transaction=debug

### log JDBC resource acquisition
#log4j.logger.org.hibernate.jdbc=debug

### enable the following line if you want to track down connection ###
### leakages when using DriverManagerConnectionProvider ###
#log4j.logger.org.hibernate.connection.DriverManagerConnectionProvider=trace

3.写一个LoggerUtil类

public class LoggerUtil {
    
    /** 存放的文件夹 **/
    private static String file_name = "好易意见反馈日志";
    
    /**
     * 得到要记录的日志的路径及文件名称
     * @return
     */
    private static String getLogName() {
        StringBuffer logPath = new StringBuffer();
        logPath.append(System.getProperty("user.home"));
        logPath.append("\\"+file_name);
        File file = new File(logPath.toString());
        if (!file.exists())
            file.mkdir();
        
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        logPath.append("\\"+sdf.format(new Date())+".log");
        return logPath.toString();
        
    }
    
    /**
     * 配置Logger对象输出日志文件路径
     * @param logger 
     * @throws SecurityException
     * @throws IOException
     */
    public static void setLogingProperties(Logger logger) throws SecurityException, IOException {
        setLogingProperties(logger,Level.ALL);
    }
    
    /**
     * 配置Logger对象输出日志文件路径
     * @param logger
     * @param level 在日志文件中输出level级别以上的信息
     * @throws SecurityException
     * @throws IOException
     */
    public static void setLogingProperties(Logger logger,Level level) {
        FileHandler fh;
        try {
            fh = new FileHandler(getLogName(),true);
            logger.addHandler(fh);//日志输出文件
            //logger.setLevel(level);
            fh.setFormatter(new SimpleFormatter());//输出格式
            //logger.addHandler(new ConsoleHandler());//输出到控制台
        } catch (SecurityException e) {
            logger.log(Level.SEVERE, "安全性错误", e);
        } catch (IOException e) {
            logger.log(Level.SEVERE,"读取文件日志错误", e);
        }
    }

4.在action中引用

import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;

import com.hooypay.util.LoggerUtil;

public class GetServiceInfoAction {
private  String name;
private String address;
private String email;
private String phone;
private String title;
private String content;
    public String getServiceInfo(){
         Logger logger = Logger.getLogger("log.text");
         try {
                LoggerUtil.setLogingProperties(logger);
                logger.log(Level.INFO, "名字："+name+","+"地址："+address+","+"邮箱："+email+","+"电话："+phone+","+"标题："+title+","+"内容："+content);
              
            } catch (SecurityException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            
//        List list =new ArrayList();
//        list.add(name);
//        list.add(address);
//        list.add(email);
//        list.add(phone);
//        list.add(title);
//        list.add(content);
//        list.add(df.format(d));
        return "success";
    }


public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public String getAddress() {
    return address;
}
public void setAddress(String address) {
    this.address = address;
}
public String getEmail() {
    return email;
}
public void setEmail(String email) {
    this.email = email;
}
public String getPhone() {
    return phone;
}
public void setPhone(String phone) {
    this.phone = phone;
}
public String getTitle() {
    return title;
}
public void setTitle(String title) {
    this.title = title;
}
public String getContent() {
    return content;
}
public void setContent(String content) {
    this.content = content;
}


public static void main(String[] args) {
    GetServiceInfoAction g= new GetServiceInfoAction();
    g.getServiceInfo();
}
}

这样就ok了