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修正MySQL校验器的问题

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1. 查询超时单位是秒，默认1000秒太长了，估计当时搞错单位了
2.当方法没有传SQL时设定一个默认的SQL，而不是直接返回true
This commit is contained in:
DigitalSonic
2017-02-10 22:22:26 +08:00
parent 16ea7700ed
commit aed14f383a
1 changed files with 6 additions and 4 deletions
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src/main/java/com/alibaba/druid/pool/vendor/MySqlValidConnectionChecker.java
Vendored
+6 -4
View File
@@ -33,7 +33,8 @@ import com.alibaba.druid.util.Utils;
public class MySqlValidConnectionChecker extends ValidConnectionCheckerAdapter implements ValidConnectionChecker, Serializable {
public static final int DEFAULT_VALIDATION_QUERY_TIMEOUT = 1000;
public static final int DEFAULT_VALIDATION_QUERY_TIMEOUT = 1;
public static final String DEFAULT_VALIDATION_QUERY = "SELECT 1";
private static final long serialVersionUID = 1L;
private static final Log LOG = LogFactory.getLog(MySqlValidConnectionChecker.class);
@@ -105,8 +106,9 @@ public class MySqlValidConnectionChecker extends ValidConnectionCheckerAdapter i
}
}
if (validateQuery == null || validateQuery.length() == 0) {
return true;
String query = validateQuery;
if (validateQuery == null || validateQuery.isEmpty()) {
query = DEFAULT_VALIDATION_QUERY;
}
Statement stmt = null;
@@ -116,7 +118,7 @@ public class MySqlValidConnectionChecker extends ValidConnectionCheckerAdapter i
if (validationQueryTimeout > 0) {
stmt.setQueryTimeout(validationQueryTimeout);
}
rs = stmt.executeQuery(validateQuery);
rs = stmt.executeQuery(query);
return true;
} finally {
JdbcUtils.close(rs);