单点登录接口代码

package com.taotao.sso.service.impl;
service层：代码
import java.util.Date;
import java.util.List;
import java.util.UUID;

import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import com.taotao.common.utils.JsonUtils;
import com.taotao.common.utils.TaotaoResult;
import com.taotao.mapper.TbUserMapper;
import com.taotao.pojo.TbUser;
import com.taotao.pojo.TbUserExample;
import com.taotao.pojo.TbUserExample.Criteria;
import com.taotao.sso.dao.JedisClient;
import com.taotao.sso.service.UserService;
//service层进行数据库的校验
@Service
public class UserServiceImpl implements UserService {
	@Autowired
	private TbUserMapper  userMapper;
	@Autowired
	private JedisClient jedisClient;
	@Value("${REDIS_SESSION_TOKEN}")
	private String REDIS_SESSION_TOKEN;
	@Value("${REDSI_SESSION_TIME}")
	private Integer REDSI_SESSION_TIME;

	public TaotaoResult checkData(String param, Integer type) {
		TbUserExample example=new TbUserExample();
		Criteria criteria=example.createCriteria();
		//1代表用户名，2代表电话，3代表邮箱
		if (1==type) {
			criteria.andUsernameEqualTo(param);
		}else if (2==type) {
			criteria.andPhoneEqualTo(param);
		}else{
			criteria.andEmailEqualTo(param);
		}
		List<TbUser> result= userMapper.selectByExample(example);
		if(result==null || result.size()==0){
			return TaotaoResult.ok(true);
		}else{
			return TaotaoResult.ok(false);
		}

	}
//用户注册接口实现类
	@Override
	public TaotaoResult loginData(TbUser user) {
		user.setUpdated(new Date());
		user.setCreated(new Date());
		//spring提供了一个MD5加密密码的方式
		user.setPassword("DigestUtils..md5DigestAsHex(user.getPassword().getBytes())");
		userMapper.insert(user);

		return TaotaoResult.ok();
	}
	//登录接口的实现逻辑
	@Override
	public TaotaoResult userLogin(String username, String password) {
		//先查询数据库中是否存在此用户名，若存在则表示用户名正确，再验证密码是否跟数据库中的MD5加密后的是否一样，都满足则登录成功，给予访问者一个token令牌，并将token令牌写入redis
	TbUserExample example=new TbUserExample();
	Criteria criteria=example.createCriteria();
	   criteria.andUsernameEqualTo(username);
	//返回值的快捷键alt+shift+L
		List<TbUser> list = userMapper.selectByExample(example);
		if (list==null || list.size()==0) {
			TaotaoResult.build(400,"用户名或密码不存在");
		}
		//根据用户名查询只能查询到一条记录，所以获取当前这个对象的信息，就是list.get(0)
		TbUser user=list.get(0);
		if(DigestUtils.md5DigestAsHex(password.getBytes())!=user.getPassword() ) {
			TaotaoResult.build(400,"用户名或密码不存在");
		}
		//将密码保存到redis比较危险，所以这里在保存之前将密码去掉
		user.setPassword(null);
		//否则用户名和密码都正确，则可以登录，办法token令牌
		String token=UUID.randomUUID().toString();
		//将token写入redis中，写入的方法要记住。要用到redis的客户端jedis.value的值是序列号的形式
		jedisClient.set(REDIS_SESSION_TOKEN+":"+token, JsonUtils.objectToJson(user));
	  //设置session的过期时间
		jedisClient.expire(REDIS_SESSION_TOKEN+":"+token, REDSI_SESSION_TIME);
//返回token
		return TaotaoResult.ok(token);
	}
	//根据token判断用户是否已经登录
	@Override
	public TaotaoResult userByToken(String token) {
		//从redis中获取token的信息，判断用户是否过期，如果没有过期则更新session时间
		String json = jedisClient.get(REDIS_SESSION_TOKEN+":"+token);
		if (StringUtils.isBlank(json)) {
			return TaotaoResult.build(400,"session已经过期，请重新登录");
		}
		//如果没有过期，则更新session时间
		jedisClient.expire(REDIS_SESSION_TOKEN+":"+token,REDSI_SESSION_TIME);
		//返回给controller层的是json数据

		return TaotaoResult.ok(JsonUtils.jsonToPojo(json, TbUser.class));
	}

}

package com.taotao.sso.controller;

import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.converter.json.MappingJacksonValue;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import com.taotao.common.utils.ExceptionUtil;
import com.taotao.common.utils.TaotaoResult;
import com.taotao.pojo.TbUser;
import com.taotao.sso.service.UserService;

@Controller
@RequestMapping("/user")
public class UserController {
	@Autowired
	private  UserService userService;
	@RequestMapping("/check/{param}/{type}")
	@ResponseBody
	public Object checkDate(@PathVariable String param ,@PathVariable Integer type,String callback){
		TaotaoResult result=null;
		if (param==null) {
			result=TaotaoResult.build(400,"校验内容不能为空");
		}
		if(type==null){
			result=TaotaoResult.build(400,"校验内容不能为空");
		}
		if( type!=1 && type !=2 && type !=3){
			result=TaotaoResult.build(400, "校验内容类型错误");
		}
		//校验出错
				if (null != result) {
					if (null != callback) {
						MappingJacksonValue mappingJacksonValue = new MappingJacksonValue(result);
						mappingJacksonValue.setJsonpFunction(callback);
						return mappingJacksonValue;
					} else {
						return result;
					}
				}
try {
	result=userService.checkData(param, type);
} catch (Exception e) {
	result=TaotaoResult.build(400,ExceptionUtil.getStackTrace(e));
}
//校验出错
if (null != result) {
	if (null != callback) {
		MappingJacksonValue mappingJacksonValue = new MappingJacksonValue(result);
		mappingJacksonValue.setJsonpFunction(callback);
		return mappingJacksonValue;
	} else {
		return result;
	}
}
return result;
	}

	//用户注册接口编写
	@RequestMapping(value="/register",method=RequestMethod.POST)
	@ResponseBody
	public TaotaoResult loginData(TbUser user){
		//利用try catch捕获异常
		try {
			TaotaoResult  result=userService.loginData(user);
			return result;
		} catch (Exception e) {
			e.printStackTrace();
		return TaotaoResult.build(500,ExceptionUtil.getStackTrace(e));
		}

	}
	//登录接口的编写,接口文档提示是post请求，如果不写post则get和post都可以，一般如果接口明确写了则要写post方法
	@RequestMapping(value="/login",method=RequestMethod.POST)
	@ResponseBody
	public TaotaoResult userLogin(String username,String password){
		try {
			TaotaoResult result=userService.userLogin(username, password);
			return result;

		} catch (Exception e) {
			e.printStackTrace();
		return 	TaotaoResult.build(400,ExceptionUtil.getStackTrace(e));

		}
	}
	@RequestMapping("/token/{token}")
	@ResponseBody
	public Object userByToken(@PathVariable String token,String callback){
		TaotaoResult result=null;
		try {
			 result=userService.userByToken(token);
		} catch (Exception e) {
			e.printStackTrace();
			result=TaotaoResult.build(500,ExceptionUtil.getStackTrace(e));
		}
		if (StringUtils.isBlank(callback)) {
			return result;
		}else{
			MappingJacksonValue mappingJacksonValue=new MappingJacksonValue(result);
			mappingJacksonValue.setJsonpFunction(callback);
			return mappingJacksonValue;
		}

	}

}