package mybatis; import java.text.DateFormat; import java.util.Date; import java.util.List; import java.util.Locale; import java.util.Properties; import org.apache.ibatis.executor.Executor; import org.apache.ibatis.mapping.BoundSql; import org.apache.ibatis.mapping.MappedStatement; import org.apache.ibatis.mapping.ParameterMapping; import org.apache.ibatis.plugin.Interceptor; import org.apache.ibatis.plugin.Intercepts; import org.apache.ibatis.plugin.Invocation; import org.apache.ibatis.plugin.Plugin; import org.apache.ibatis.plugin.Signature; import org.apache.ibatis.reflection.MetaObject; import org.apache.ibatis.session.Configuration; import org.apache.ibatis.session.ResultHandler; import org.apache.ibatis.session.RowBounds; import org.apache.ibatis.type.TypeHandlerRegistry; @Intercepts({   @Signature(type = Executor.class, method = "update", args = { MappedStatement.class, Object.class }),   @Signature(type = Executor.class, method = "query", args = { MappedStatement.class, Object.class,     RowBounds.class, ResultHandler.class }) }) public class MybatisInterceptor implements Interceptor {  private Properties properties;  public Object intercept(Invocation invocation) throws Throwable {   MappedStatement mappedStatement = (MappedStatement) invocation.getArgs()[0];   Object parameter = null;   if (invocation.getArgs().length > 1) {    parameter = invocation.getArgs()[1];   }   String sqlId = mappedStatement.getId();   BoundSql boundSql = mappedStatement.getBoundSql(parameter);   Configuration configuration = mappedStatement.getConfiguration();   Object returnValue = null;   long start = System.currentTimeMillis();   returnValue = invocation.proceed();   long end = System.currentTimeMillis();   long time = (end - start);   if (time > 1) {    String sql = getSql(configuration, boundSql, sqlId, time);    System.err.println(sql);   }   return returnValue;  }  public static String getSql(Configuration configuration, BoundSql boundSql, String sqlId, long time) {   String sql = showSql(configuration, boundSql);   StringBuilder str = new StringBuilder(100);   str.append(sqlId);   str.append(":");   str.append(sql);   str.append(":");   str.append(time);   str.append("ms");   return str.toString();  }  private static String getParameterValue(Object obj) {   String value = null;   if (obj instanceof String) {    value = "'" + obj.toString() + "'";   } else if (obj instanceof Date) {    DateFormat formatter = DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT, Locale.CHINA);    value = "'" + formatter.format(new Date()) + "'";   } else {    if (obj != null) {     value = obj.toString();    } else {     value = "";    }   }   return value;  }  public static String showSql(Configuration configuration, BoundSql boundSql) {   Object parameterObject = boundSql.getParameterObject();   List<ParameterMapping> parameterMappings = boundSql.getParameterMappings();   String sql = boundSql.getSql().replaceAll("[\\s]+", " ");   if (parameterMappings.size() > 0 && parameterObject != null) {    TypeHandlerRegistry typeHandlerRegistry = configuration.getTypeHandlerRegistry();    if (typeHandlerRegistry.hasTypeHandler(parameterObject.getClass())) {     sql = sql.replaceFirst("\\?", getParameterValue(parameterObject));    } else {     MetaObject metaObject = configuration.newMetaObject(parameterObject);     for (ParameterMapping parameterMapping : parameterMappings) {      String propertyName = parameterMapping.getProperty();      if (metaObject.hasGetter(propertyName)) {       Object obj = metaObject.getValue(propertyName);       sql = sql.replaceFirst("\\?", getParameterValue(obj));      } else if (boundSql.hasAdditionalParameter(propertyName)) {       Object obj = boundSql.getAdditionalParameter(propertyName);       sql = sql.replaceFirst("\\?", getParameterValue(obj));      }     }    }   }   return sql;  }  public Object plugin(Object target) {   return Plugin.wrap(target, this);  }  public void setProperties(Properties properties0) {   this.properties = properties0;  } }