Spring框架NullPointerException错误，求大神解决

[qq_27217451]

LoginLogDAOImpl

package com.bbs.dao;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;

import com.bbs.domain.LoginLog;
import com.bbs.domain.User;

import sun.print.resources.serviceui;
@Repository
public class LoginLogDAOImpl implements LoginLogDAO {
	@Autowired
	private JdbcTemplate jdbcTemplate;
	@Override
	public void insertLoginLog(LoginLog loginLog){
		String sql = "insert into t_login_log  values(?,null)";
	    jdbcTemplate.update(sql,loginLog.getUser_id());
		
	}

}

UserLogDAOImpl 部分

	
	public User findUserByName(String account,String password) {
		String sql = "SELECT * FROM t_user WHERE account = ? AND password = ?";
		final User user = new User();
		jdbcTemplate.query( sql, new Object[] {account,password}, new RowCallbackHandler() {
			@Override
			public void processRow(ResultSet rs) throws SQLException {
				user.setId(rs.getInt("id"));
				user.setAccount(rs.getString("account"));
				user.setPassword(rs.getString("password"));
				user.setCredits(rs.getInt("credits")+100);
			}
		});
		return user;
	}
	

UserServiceImpl

package com.bbs.service;
@Service
public class UserServiceImpl implements UserService {
	@Autowired
	private UserDAO userDAO;
    private LoginLogDAO loginLogDAO;
	@Override
	public boolean userRegist(User user) {
		boolean flag = false;
		if(user.getAccount().equals("")==false&&user.getPassword().equals("")==false){
		int n = userDAO.insertUser(user);
		if (n == 1) {
			flag = true;
		}
		return flag;
	} return flag;
		}
	@Override
	public boolean  userLogin(String account,String password){
		boolean flag = false;
		User user = userDAO.findUserByName(account,password);
		LoginLog loginLog = new LoginLog(user.getId());
		if(user.getId()!=null){
			userDAO.updateUser(user);
			loginLogDAO.insertLoginLog(loginLog);//就是这句加上会出错
			flag = true;	
		}
		return flag;
	     
}

错误信息

HTTP Status 500 - Request processing failed; nested exception is java.lang.NullPointerException


type Exception report

message Request processing failed; nested exception is java.lang.NullPointerException

description The server encountered an internal error that prevented it from fulfilling this request.

exception
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:981)
	org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:871)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)


root cause
java.lang.NullPointerException
	com.bbs.service.UserServiceImpl.userLogin(UserServiceImpl.java:36)
	com.bbs.web.UserController.logCheck(UserController.java:40)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	java.lang.reflect.Method.invoke(Unknown Source)
	org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:178)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:444)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:432)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:969)
	org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:871)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)


note The full stack trace of the root cause is available in the Apache Tomcat/8.0.32 logs.

[jzq114]

String sql = "insert into t_login_log values(?,null)";这句sql有问题，你的values里面有两个参数，就要对应表里面的两个字段

[xiedacon]

loginLogDAO没有加@Autowired 的原因吧？ 为什么错误信息跟代码不匹配?

[qq_27217451]

引用 2 楼 qq_27350929 的回复:

loginLogDAO没有加@Autowired 的原因吧？ 为什么错误信息跟代码不匹配?

@Autowired private UserDAO userDAO; private LoginLogDAO loginLogDAO; 加了

[qq_27217451]

引用 3 楼 qq_27217451 的回复:

[quote=引用 2 楼 qq_27350929 的回复:] loginLogDAO没有加@Autowired 的原因吧？ 为什么错误信息跟代码不匹配?

@Autowired private UserDAO userDAO; private LoginLogDAO loginLogDAO; 加了[/quote]我搞错了 谢谢 太有用了