db2数据库中CLOB字段不能插入内容

xinxuaw231

　　今天写了一个JDBC操纵db2中大文本字段的demo，可是一直出错，希望大家帮帮忙看看哪里出错了！
　　数据库定义：

CREATE TABLE
USERINFO
(
USERID INTEGER NOT NULL GENERATED BY DEFAULT AS IDENTITY,
USERNAME VARCHAR(20) NOT NULL,
USERAGE INTEGER,
USERDSP CLOB(200000),
PRIMARY KEY (USERID)
)
　　数据库操作类：

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.sql.Clob;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class PrepareStatementDemo {
public void add() {
String sqlString = "insert into USERINFO(USERNAME,USERAGE,USERDSP) values(?,?,?)";
BasedJdbc basedJdbc = new BasedJdbc();
PreparedStatement preparedStatement = basedJdbc.getPreparedStatement(sqlString);
File file = new File("D:\\config\\a.txt");
InputStream inputStream = null;
try {
inputStream = new FileInputStream(file);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
try {
preparedStatement.setString(1, "userClob");
preparedStatement.setInt(2, 1);
preparedStatement.setAsciiStream(3, inputStream, (int)file.length());
preparedStatement.execute();
} catch (SQLException e) {
e.printStackTrace();
}
basedJdbc.close();
}
}
　　单元测试：

import org.testng.annotations.Test;
public class PerparedStatementTest {
@Test   
public void addTest(){
PrepareStatementDemo prepareStatementDemo = new PrepareStatementDemo();
prepareStatementDemo.add();
}

}

　　运行后控制台信息：

com.ibm.db2.jcc.am.SqlException: DB2 SQL Error: SQLCODE=-668, SQLSTATE=57016, SQLERRMC=7;ROOT.USERINFO, DRIVER=4.12.55
at com.ibm.db2.jcc.am.hd.a(hd.java:679)
at com.ibm.db2.jcc.am.hd.a(hd.java:60)
at com.ibm.db2.jcc.am.hd.a(hd.java:127)
at com.ibm.db2.jcc.am.mn.b(mn.java:2290)
at com.ibm.db2.jcc.am.mn.c(mn.java:2273)
at com.ibm.db2.jcc.t4.cb.k(cb.java:370)
at com.ibm.db2.jcc.t4.cb.a(cb.java:62)
at com.ibm.db2.jcc.t4.q.a(q.java:50)
at com.ibm.db2.jcc.t4.sb.b(sb.java:220)
at com.ibm.db2.jcc.am.nn.nc(nn.java:3083)
at com.ibm.db2.jcc.am.nn.b(nn.java:4037)
at com.ibm.db2.jcc.am.nn.hc(nn.java:2422)
at com.ibm.db2.jcc.am.nn.execute(nn.java:2402)
at com.suning.study.jdbc.PrepareStatementDemo.add(PrepareStatementDemo.java:70)
at com.suning.study.jdbc.PerparedStatementTest.addTest(PerparedStatementTest.java:31)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:80)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:702)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:894)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1219)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
at org.testng.TestRunner.privateRun(TestRunner.java:768)
at org.testng.TestRunner.run(TestRunner.java:617)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:334)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291)
at org.testng.SuiteRunner.run(SuiteRunner.java:240)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:87)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1185)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1110)
at org.testng.TestNG.run(TestNG.java:1022)
at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:109)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:202)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:173)
PASSED: addTest
===============================================
Default test
Tests run: 1, Failures: 0, Skips: 0
===============================================