代碼比較簡單，平時也比較常用，直接上
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Properties;
public class PropertiesUtil {
private static Logger logger = LoggerFactory.getLogger(PropertiesUtil.class);
private static Properties props;
static {
String fileName = "test.properties";
props = new Properties();
try {
props.load(new InputStreamReader(PropertiesUtil.class.getClassLoader().getResourceAsStream(fileName), "UTF-8"));
} catch (IOException e) {
logger.error("配置文件讀取異常", e);
}
}
//獲取配置文件中的key對呀的value
public static String getProperty(String key) {
String value = props.getProperty(key.trim());
if (StringUtils.isBlank(value)) {
return null;
}
return value.trim();
}
//獲取配置文件中的key對呀的value淹接，如果未空铲汪，返回默認(rèn)值
public static String getProperty(String key, String defaultValue) {
String value = props.getProperty(key.trim());
if (StringUtils.isBlank(value)) {
value = defaultValue;
}
return value.trim();
}
}
