问题描述
||
我正在获取sql异常。
以下是我的代码,
public DBConnect()
{
try {
// Load the Oracle JDBC driver
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
// connect through driver
conn = DriverManager.getConnection(\"jdbc:oracle:thin:@localhost:1521:orcl\",\"system\",\"system123\");
// conn = DriverManager.getConnection(\"jdbc:oracle:thin:@127.0.0.1:1521:XE\",\"system123\");
// create a statement object
CallableStatement cstmt = null;
String auth;
try {
cstmt = conn.prepareCall(\"{? = call login(?,?)}\");
cstmt.registerOutParameter(1,java.sql.Types.BOOLEAN);
cstmt.setString(2,\"aniket\");
cstmt.setString(3,\"aniket\");
cstmt.execute();
auth = cstmt.getString(1);
cstmt.close();
System.out.println(auth);
} catch (sqlException e) {
e.printstacktrace();
}
} catch (sqlException ex) {
Logger.getLogger(DBConnect.class.getName()).log(Level.SEVERE,null,ex);
}
catch(Exception e)
{
//system.out.println(e.printstacktrace());
}
}
以下是stacktrace-
java.sql.sqlException: ORA-01403: no data found
ORA-06512:位于\“ SYstem.LOGIN \”,第10行
ORA-06512:在第1行
at oracle.jdbc.driver.DatabaseError.throwsqlException(DatabaseError.java:113)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288)
at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:754)
at oracle.jdbc.driver.T4CCallableStatement.doOall8(T4CCallableStatement.java:218)
at oracle.jdbc.driver.T4CCallableStatement.executeForRows(T4CCallableStatement.java:971)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1192)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3415)
at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:3521)
at oracle.jdbc.driver.OracleCallableStatement.execute(OracleCallableStatement.java:4612)
at com.me.db.DBConnect.<init>(DBConnect.java:57)
at com.me.controller.PreLoginController.handleRequestInternal(PreLoginController.java:25)
at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
at org.springframework.web.servlet.dispatcherServlet.dodispatch(dispatcherServlet.java:875)
at org.springframework.web.servlet.dispatcherServlet.doService(dispatcherServlet.java:809)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:203)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:108)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:558)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:379)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:242)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:259)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:281)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
以下是我的PL / sql函数登录-
CREATE OR REPLACE FUNCTION login(p_uname IN varchar2,p_pword
在varchar2中)
返回字符串
如
v_uname varchar2(30);
v_pword varchar2(30);
开始
SELECT uname,pword INTO v_uname,v_pword
FROM user_account
WHERE uname = p_uname AND pword = p_pword;
IF (v_uname IS NULL OR v_pword IS NULL) THEN
return \'Failed\';
ELSE
return \'Success\';
END IF;
结束登录;
/解决方法
login
PL / SQL函数声明的参数类型与Java中设置的类型之间不匹配。 ѭ6似乎是最有可能的候选人。确保返回值login
确实与java布尔值兼容。,如skaffman所述,Oracle JDBC驱动程序不支持PL / SQL布尔类型。
所以我将返回类型更改为varchar。
我的PL / SQL代码中缺少的另一个关键问题是在返回0行(即NO_DATA_FOUND)的情况下的异常处理
在PL / SQL函数登录中添加了该异常,并将“ \'False \'返回到异常”部分的位置更改为
如果是NO_DATA_FOUND然后
返回\'False \';