com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException：无法添加或更新子行：外键约束失败（

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com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException：无法添加或更新子行：外键约束失败（storechainmanagement。user，CONSTRAINT user_ibfk_1 FOREIGN KEY（ store_id）参考store（store_id））sun.reflect.NativeConstructorAccessorImpl.newInstance0（Native Method）at sun.reflect.NativeConstructorAccessorImpl.newInstance（Unknown Source）at sun.reflect.DelegatingConstructorAccessorImpl com.mysql.jdbc.Util.getInstance（Util。）中的com.mysql.jdbc.Util.handleNewInstance（Util.java:425）中java.lang.reflect.Constructor.newInstance（未知来源）的.newInstance（未知来源）。的java：408）在com.mysql.jdbc.SQLError.createSQLException（SQLError.java:936）在com.mysql.jdbc.MysqlIO.checkErrorPacket（MysqlIO.java:3973）在com.mysql.jdbc.MysqlIO.checkErrorPacket（了MysqlIO .com：3909）com.mysql.jdbc.MysqlIO.sendCommand（MysqlIO.java:2527）com.mysql.jdbc.MysqlIO.sqlQueryDirect（MysqlIO.java:2680）at com.mysql.jdbc.ConnectionImpl.execSQL（ ConnectionImpl.java:2484）在com.mysql.jd bc.PreparedStatement.executeInternal（PreparedStatement.java:1858）在com.mysql.jdbc.PreparedStatement.executeUpdateInternal（PreparedStatement.java:2079）在com.mysql.jdbc.PreparedStatement.executeUpdateInternal（PreparedStatement.java:2013）在com.mysql .jdbc.PreparedStatement.executeLargeUpdate（PreparedStatement.java:5104）at com.mysql.jdbc.PreparedStatement.executeUpdate（PreparedStatement.java:1998）at com.azilen.storemanagement.dao.StoreManagementDaoImpl.saveManager（StoreManagementDaoImpl.java:323）at at com.azilen.storemanagement.service.StoreManagementServiceImpl.addManager（StoreManagementServiceImpl.java:35）在com.azilen.storemanagement.controller.CreateUserServlet.doPost（CreateUserServlet.java:51）在javax.servlet.http.HttpServlet.service（的HttpServlet。 java：648）javax.servlet.http.HttpServlet.service（HttpServlet.java:729）org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:292）at org.apache.catalina.core.ApplicationFilterChain .doFilter（A pplicationFilterChain.java:207）在org.apache.tomcat.websocket.server.WsFilter.doFilter（WsFilter.java:52）在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:240）在org.apache .catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:207）org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:212）at org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java） ：106）org.apache.catalina.authenticator.AuthenticatorBase.invoke（AuthenticatorBase.java:502）org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:141）org.apache.catalina.valves。位于org.apache.catalina.valves.AbstractAccessLogValve.invoke（AbstractAccessLogValve.java:616）的orr.apache.catalina.core.StandardEngineValve.invoke（StandardEngineValve.java:88）的orde.Verve.invoke（ErrorReportValve.java:79）中的ErrorReportValve.invoke（ErrorReportValve.java:79） org.apache.coyot上的.apache.catalina.connector.CoyoteAdapter.service（CoyoteAdapter.java:528） e.http11.AbstractHttp11Processor.process（AbstractHttp11Processor.java:1099）org.apache.coyote.AbstractProtocol $ AbstractConnectionHandler.process（AbstractProtocol.java:672）at org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun（ NioEndpoint.java:1520）在java.util.concurrent的java.util.concurrent.ThreadPoolExecutor.runWorker（未知来源）的org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.run（NioEndpoint.java:1476）。 ThreadPoolExecutor $ Worker.run（未知来源）atg.apache.tomcat.util.threads.TaskThread $ WrappingRunnable.run（TaskThread.java:61）at java.lang.Thread.run（Unknown Source）

@Override
public int saveManager(Manager manager) throws SQLException {
    int status = 0;
    PreparedStatement ps = null;
    Connection con = null;
    try {
        con = getConnection();
        ps = con.prepareStatement(
                "insert into user(user_id,first_name,last_name,email,password,mobile_number,user_type,store_id) values (?,?,?,?,?,?,?,?)");
        ps.setInt(1, (int) manager.getUserId());
        ps.setString(2, manager.getFname());
        ps.setString(3, manager.getLname());
        ps.setString(4, manager.getEmail());
        ps.setString(5, manager.getPassword());
        ps.setString(6, manager.getPhone());
        ps.setString(7, manager.getUserType());
        ps.setInt(8, (int) manager.getStore().getStoreId());
        status = ps.executeUpdate();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (ps != null) {
            ps.close();
        }
        if (con != null) {
            con.close();
        }
    }
    return status;
}