我正在使用Jetty ver。 9.4.2.v20170220与oracle.jdbc.pool.OracleDataSource(版本11.2.0.4)连接(然后插入)Oracle Database 11g Express Edition。我对我的数据源的查找设置问题感到困惑。我仍然得到错误的Oracle URL地址。我的连接对象的tostring如下所示:oracle.jdbc.pool.OracleDataSource@3d10bb5a。我确信驱动程序安装正确,因为直接连接如:
private static Connection getDBConnection() {
Connection dbConnection = null;
try {
Class.forName(DB_DRIVER);
} catch (ClassNotFoundException e) {
System.out.println(e.getMessage());
}
try {
dbConnection = DriverManager.getConnection(
DB_CONNECTION, DB_USER, DB_PASSWORD);
return dbConnection;
} catch (SQLException e) {
System.out.println(e.getMessage());
}
return dbConnection;
完美无缺(我可以毫无问题地插入)。但我不想硬编码连接属性,我想从xml配置文件中读取它们。
我的jetty-env.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE Configure PUBLIC "-//Mort Bay Consulting//DTD Configure//EN" "http://www.eclipse.org/jetty/configure_9_0.dtd">
<Configure id='wac' class="org.eclipse.jetty.webapp.WebAppContext">
<New id="DSTest" class="org.eclipse.jetty.plus.jndi.Resource">
<Arg><Ref refid="wac"/></Arg>
<Arg>jdbc/DSTest</Arg>
<Arg>
<New class="oracle.jdbc.pool.OracleDataSource">
<Set name="DriverType">thin</Set>
<Set name="URL">jdbc:oracle:system:thin:@localhost:1521:xe</Set>
<Set name="User">mylogin</Set>
<Set name="Password">mypass</Set>
</New>
</Arg>
</New>
</Configure>
web.xml的片段:
<resource-ref>
<description>My DataSource Reference</description>
<res-ref-name>jdbc/DSTest</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
和servlet代码的片段(用于连接然后插入):
private static Connection connTest() throws NamingException, SQLException {
Context initContext = new InitialContext();
DataSource dataSource = (DataSource) initContext.lookup("java:comp/env/jdbc/DSTest");
System.out.println(dataSource);
System.out.println(dataSource.toString());
Connection connection = dataSource.getConnection();
return connection;
}
@POST
@Path("/testinsert")
@Consumes(MediaType.APPLICATION_JSON)
public Response testinsert(SimpleJsonModel simpleJsonModel) {
String result = "JSON saved test: " + simpleJsonModel;
try {
insertRecord(simpleJsonModel.getJsonId(), simpleJsonModel.getNumber());
} catch (SQLException e) {
System.out.println(e.getMessage());
}
return Response.status(201).entity(result).build();
}
private static void insertRecord(String val1, String val2) throws SQLException {
Connection dbConnection = null;
Statement statement = null;
String insertTableSQL = "insert into json.johny_table ( jsonId, numberJ) values ('" + val1 + "', '" + val2 + "')";
try {
dbConnection = connTest();
statement = dbConnection.createStatement();
System.out.println(insertTableSQL);
statement.executeUpdate(insertTableSQL);
System.out.println("inserted");
} catch (SQLException e) {
System.out.println(e.getMessage());
} catch (NamingException e) {
e.printStackTrace();
} finally {
if (statement != null) {
statement.close();
}
if (dbConnection != null) {
dbConnection.close();
}
}
}
}
所以,问题是如何通过查找正确读取jndi属性以及如何建立与它的连接。以及如何从jetty-env.xml读取url的字符串的任何提示?
非常感谢:)
答案 0 :(得分:0)
一切都很好,除了jetty-env.xml中的一行:
<Set name="URL">jdbc:oracle:system:thin:@localhost:1521:xe</Set>
应该是:
<Set name="URL">jdbc:oracle:thin:@localhost:1521:xe</Set>
我不知道为什么我把字系统放在那里。