- 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;
- }
- }
- //该片段来自于http://www.codesnippet.cn/detail/3112201411448.html
来源: http://www.codesnippet.cn/detail/3112201411448.html