mybatis-plus使用拦截器实现sql完整打印
/**
* @author shigenfu
* @date 2024/6/16 10:01
*/
@Intercepts({
@Signature(type = Executor.class, method = "query", args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class}),
@Signature(type = Executor.class, method = "query", args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class, CacheKey.class, BoundSql.class}),
@Signature(type = Executor.class, method = "update", args = {MappedStatement.class, Object.class})
})
@Slf4j
public class SqlInterceptor implements Interceptor {
@Override
public Object intercept(Invocation invocation) throws Throwable {
// 统计sql执行耗时
long startTime = System.currentTimeMillis();
Object proceed = invocation.proceed();
long endTime = System.currentTimeMillis();
String printSql = null;
try {
printSql = generateSql(invocation);
} catch (Exception exception) {
log.error("获取sql异常", exception);
} finally {
long costTime = endTime - startTime;
log.info("\n 执行SQL耗时：{}ms \n 执行SQL：{}", costTime, printSql);
}
return proceed;
}
private static String generateSql(Invocation invocation) {
MappedStatement statement = (MappedStatement) invocation.getArgs()[0];
Object parameter = null;
if (invocation.getArgs().length > 1) {
parameter = invocation.getArgs()[1];
}
Configuration configuration = statement.getConfiguration();
BoundSql boundSql = statement.getBoundSql(parameter);
// 获取参数对象
Object parameterObject = boundSql.getParameterObject();
// 获取参数映射
List<ParameterMapping> params = boundSql.getParameterMappings();
// 获取到执行的SQL
String sql = boundSql.getSql();
// SQL中多个空格使用一个空格代替
sql = sql.replaceAll("[\\s]+", " ");
if (!ObjectUtils.isEmpty(params) && !ObjectUtils.isEmpty(parameterObject)) {
// TypeHandlerRegistry 是 MyBatis 用来管理 TypeHandler 的注册器 TypeHandler 用于在 Java 类型和 JDBC 类型之间进行转换
TypeHandlerRegistry typeHandlerRegistry = configuration.getTypeHandlerRegistry();
// 如果参数对象的类型有对应的 TypeHandler，则使用 TypeHandler 进行处理
if (typeHandlerRegistry.hasTypeHandler(parameterObject.getClass())) {
sql = sql.replaceFirst("\\?", Matcher.quoteReplacement(getParameterValue(parameterObject)));
} else {
// 否则，逐个处理参数映射
for (ParameterMapping param : params) {
// 获取参数的属性名
String propertyName = param.getProperty();
MetaObject metaObject = configuration.newMetaObject(parameterObject);
// 检查对象中是否存在该属性的 getter 方法，如果存在就取出来进行替换
if (metaObject.hasGetter(propertyName)) {
Object obj = metaObject.getValue(propertyName);
sql = sql.replaceFirst("\\?", Matcher.quoteReplacement(getParameterValue(obj)));
// 检查 BoundSql 对象中是否存在附加参数
} else if (boundSql.hasAdditionalParameter(propertyName)) {
Object obj = boundSql.getAdditionalParameter(propertyName);
sql = sql.replaceFirst("\\?", Matcher.quoteReplacement(getParameterValue(obj)));
} else {
// SQL匹配不上，带上“缺失”方便找问题
sql = sql.replaceFirst("\\?", "缺失");
}
}
}
}
return sql;
}
private static String getParameterValue(Object object) {
String value = "";
if (object instanceof String) {
value = "'" + object + "'";
} else if (object instanceof Date) {
DateFormat format = DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT, Locale.CHINA);
value = "'" + format.format((Date) object) + "'";
} else if (!ObjectUtils.isEmpty(object)) {
value = object.toString();
}
return value;
}
@Override
public Object plugin(Object target) {
return Plugin.wrap(target, this);
}
}