Caused by: java.sql.SQLException: Generated keys not requested

1、错误描述

at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
	at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83)
	at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:233)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:87)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
	at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
	at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:176)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.sql.SQLException: Generated keys not requested. You need to specify Statement.RETURN_GENERATED_KEYS to Statement.executeUpdate() or Connection.prepareStatement().
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:996)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:935)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:924)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:870)
	at com.mysql.jdbc.StatementImpl.getGeneratedKeys(StatementImpl.java:1817)
	at com.alibaba.druid.filter.FilterChainImpl.statement_getGeneratedKeys(FilterChainImpl.java:2621)
	at com.alibaba.druid.filter.FilterAdapter.statement_getGeneratedKeys(FilterAdapter.java:2524)
	at com.alibaba.druid.filter.FilterEventAdapter.statement_getGeneratedKeys(FilterEventAdapter.java:415)
	at com.alibaba.druid.filter.FilterChainImpl.statement_getGeneratedKeys(FilterChainImpl.java:2618)
	at com.alibaba.druid.proxy.jdbc.StatementProxyImpl.getGeneratedKeys(StatementProxyImpl.java:299)
	at com.alibaba.druid.pool.DruidPooledStatement.getGeneratedKeys(DruidPooledStatement.java:599)
	at com.mes.joint.dao.trans.impl.MagreeDaoSyncSupport$4.setValues(MagreeDaoSyncSupport.java:214)
	at org.springframework.jdbc.core.JdbcTemplate$4.doInPreparedStatement(JdbcTemplate.java:999)
	at org.springframework.jdbc.core.JdbcTemplate$4.doInPreparedStatement(JdbcTemplate.java:989)
	at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:644)
	... 46 more

2、错误原因

private static final String SQL_INSERT_STUDENT = "insert into t_student_info(student_name,student_age,student_sex,student_addr) values(?,?,?,?) ";

@Resource
private DruidDataSource dataSource;


Connection conn = dataSource.getConnection();  
con.setAutoCommit(false);  
PreparedStatement pstm = conn.prepareStatement(SQL_INSERT_STUDENT, PreparedStatement.RETURN_GENERATED_KEYS);  
for (Map<String,String> map:mapList) 
{  
   pstm.setString(1,map.get("studentName"));     
   pstm.setString(2,map.get("studentAge")); 
   pstm.setString(3,map.get("studentSex")); 
   pstm.setString(4,map.get("studentAddr")); 
   pstm.addBatch();  
}  
pstm.executeBatch();   
conn.commit();     
ResultSet rs = pstm.getGeneratedKeys(); 
List<Integer> list = new ArrayList<Integer>();   
while(rs.next()) 
{  
   list.add(rs.getInt(1));
}  
conn.close();  
pstm.close();  
rs.close(); 

    ResultSet rs = pstm.getGeneratedKeys(); 无法获取自动增长的ID

3、解决办法

（1）首先，先插入数据

（2）然后，利用某一字段查询出id

（3）最后，将ID放入到map集合中