日志框架的实时变化，即日起，思维详细框架（4）

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fw.write(ENTER_CODE);

for (LogConfigBean lc : list) {

writeLogWithModule(fw, lc);

fw.write(ENTER_CODE);

}

} catch (FileNotFoundException e) {

LOG.error("file " + backFile.getAbsolutePath() + " not found \n"

+ e.getMessage());

} catch (IOException e) {

LOG.error("file " + backFile.getAbsolutePath() + " IOException \n"

+ e.getMessage());

} finally {

// 关闭流

if (null != fw) {

try {

fw.close();

} catch (IOException e) {

LOG.error("close file " + backFile.getAbsolutePath()

+ " IO error\n" + e.getMessage());

}

}

}

String log4j = WEB_INF_PATH + LOG4J_PROPERTIES_NAME;

backFile.renameTo(new File(log4j));

}

private void initData(FileWriter fw, String key, String value)

throws IOException {

fw.write(key + "=" + value + ENTER_CODE);

}

private String initPropsData(Properties props, String key,

String defaultValue) {

String value = props.getProperty(key);

value = (value == null || "".equals(value.trim())) ? defaultValue

: value;

return key + "=" + value + ENTER_CODE;

}