Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

bugfix: Resolve MySQL Driver Loading Issue (#6760) #6765

Merged
merged 5 commits into from
Aug 25, 2024
Merged
Show file tree
Hide file tree
Changes from 1 commit
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
Original file line number Diff line number Diff line change
Expand Up @@ -16,17 +16,6 @@
*/
package org.apache.seata.core.store.db;

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import java.util.stream.Stream;

import javax.sql.DataSource;

import org.apache.seata.common.exception.StoreException;
import org.apache.seata.common.executor.Initialize;
import org.apache.seata.common.util.ConfigTools;
Expand All @@ -38,6 +27,8 @@
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.sql.DataSource;
lyl2008dsg marked this conversation as resolved.
Show resolved Hide resolved

import static org.apache.seata.common.DefaultValues.DEFAULT_DB_MAX_CONN;
import static org.apache.seata.common.DefaultValues.DEFAULT_DB_MIN_CONN;

Expand All @@ -56,20 +47,8 @@ public abstract class AbstractDataSourceProvider implements DataSourceProvider,
*/
protected static final Configuration CONFIG = ConfigurationFactory.getInstance();

private final static String MYSQL_DRIVER_CLASS_NAME = "com.mysql.jdbc.Driver";

private final static String MYSQL8_DRIVER_CLASS_NAME = "com.mysql.cj.jdbc.Driver";

private final static String MYSQL_DRIVER_FILE_PREFIX = "mysql-connector-java-";

private final static Map<String, ClassLoader> MYSQL_DRIVER_LOADERS;

private static final long DEFAULT_DB_MAX_WAIT = 5000;

static {
MYSQL_DRIVER_LOADERS = createMysqlDriverClassLoaders();
}

@Override
public void init() {
this.dataSource = generate();
Expand Down Expand Up @@ -145,50 +124,7 @@ protected Long getMaxWait() {
}

protected ClassLoader getDriverClassLoader() {
return MYSQL_DRIVER_LOADERS.getOrDefault(getDriverClassName(), ClassLoader.getSystemClassLoader());
}

private static Map<String, ClassLoader> createMysqlDriverClassLoaders() {
Map<String, ClassLoader> loaders = new HashMap<>();
String cp = System.getProperty("java.class.path");
if (cp == null || cp.isEmpty()) {
return loaders;
}
Stream.of(cp.split(File.pathSeparator))
.map(File::new)
.filter(File::exists)
.map(file -> file.isFile() ? file.getParentFile() : file)
.filter(Objects::nonNull)
.filter(File::isDirectory)
.map(file -> new File(file, "jdbc"))
.filter(File::exists)
.filter(File::isDirectory)
.distinct()
.flatMap(file -> {
File[] files = file.listFiles((f, name) -> name.startsWith(MYSQL_DRIVER_FILE_PREFIX));
if (files != null) {
return Stream.of(files);
} else {
return Stream.of();
}
})
.forEach(file -> {
if (loaders.containsKey(MYSQL8_DRIVER_CLASS_NAME) && loaders.containsKey(MYSQL_DRIVER_CLASS_NAME)) {
return;
}
try {
URL url = file.toURI().toURL();
ClassLoader loader = new URLClassLoader(new URL[]{url}, ClassLoader.getSystemClassLoader());
try {
loader.loadClass(MYSQL8_DRIVER_CLASS_NAME);
loaders.putIfAbsent(MYSQL8_DRIVER_CLASS_NAME, loader);
} catch (ClassNotFoundException e) {
loaders.putIfAbsent(MYSQL_DRIVER_CLASS_NAME, loader);
}
} catch (MalformedURLException ignore) {
}
});
return loaders;
return ClassLoader.getSystemClassLoader();
}

/**
Expand Down
4 changes: 2 additions & 2 deletions distribution/NOTICE.md
Original file line number Diff line number Diff line change
Expand Up @@ -273,8 +273,8 @@ Please copy database driver dependencies, such as `mysql-connector-java.jar`, to
├── spring-web-5.3.30.jar
├── spring-webmvc-5.3.30.jar
├── xstream-1.4.20.jar
├── mysql-connector-java-8.0.28.jar
lyl2008dsg marked this conversation as resolved.
Show resolved Hide resolved
└── jdbc
├── mysql-connector-java-8.0.28.jar
└── NOTICE.md

```
Expand Down Expand Up @@ -555,8 +555,8 @@ Please copy database driver dependencies, such as `mysql-connector-java.jar`, to
├── spring-web-5.3.30.jar
├── spring-webmvc-5.3.30.jar
├── xstream-1.4.20.jar
├── mysql-connector-java-8.0.28.jar
lyl2008dsg marked this conversation as resolved.
Show resolved Hide resolved
└── jdbc
├── mysql-connector-java-8.0.28.jar
└── NOTICE.md

```
Loading