springboot实现微信小程序授权登录前后端代码完整版

       一个简单的微信授权登录的demo,我这边没有建表,是存到redis里面了,仅供参考,后续可以扩展自己的业务逻辑,把登录信息存在表里面。

  • 前端小程序代码:


    
    
page {
    background-color: whitesmoke;
}

.login-img {
    width: 750rpx;
}

/*表单内容*/
.inputView {
    background-color: white;
    line-height: 45px;
}

/*输入框*/
.nameImage, .keyImage {
    margin-left: 22px;
    width: 20px;
    height: 20px;
}

.loginLabel {
    margin: 15px 15px 15px 10px;
    color: gray;
    font-size: 15px;
}

.inputText {
    float: right;
    text-align: right;
    margin-right: 22px;
    margin-top: 11px;
    font-size: 15px;
}

.line {
    width: 100%;
    height: 1px;
    background-color: gainsboro;
    margin-top: 1px;
}

/*按钮*/
.loginBtn {
    width: 80%;
    margin-top: 35px;
}

.goRegistBtn {
    width: 80%;
    margin-top: 15px;
}
const app = getApp()

Page({
  data: {
  },

  onLoad: function (params) {

  },

  // 登录  
  doLogin: function (e) {
    console.log(e.detail.errMsg)
    console.log(e.detail.userInfo)
    console.log(e.detail.rawData)

    wx.login({
      success: function(res) {
        console.log(res)
        // 获取登录的临时凭证
        var code = res.code;
        // 调用后端,获取微信的session_key, secret
        wx.request({
          url: "http://127.0.0.1:8080/wxLogin?code=" + code,
          method: "POST",
          success: function(result) {
            console.log(result);
            // 保存用户信息到本地缓存,可以用作小程序端的拦截器
            app.setGlobalUserInfo(e.detail.userInfo);
            wx.redirectTo({
            //成功后跳转到首页
              url: '../index/index',
            })
          }
        })

      }
    })
  }
})
  • 后端代码:

public class WXSessionModel {

	private String session_key;
	private String openid;
	
	public String getSession_key() {
		return session_key;
	}
	public void setSession_key(String session_key) {
		this.session_key = session_key;
	}
	public String getOpenid() {
		return openid;
	}
	public void setOpenid(String openid) {
		this.openid = openid;
	}
}
import java.util.HashMap;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;

import com.fasterxml.jackson.databind.annotation.JsonAppend.Attr;
import com.test.common.HttpClientUtil;
import com.test.common.IMoocJSONResult;
import com.test.common.JsonUtils;
import com.test.common.RedisOperator;
import com.test.model.WXSessionModel;

@RestController
public class WXLoginController {
	
	@Autowired
	private RedisOperator redis;
	

	@PostMapping("/wxLogin")
	public JSONResult wxLogin(String code) {
		
		System.out.println("wxlogin - code: " + code);
		
//		https://api.weixin.qq.com/sns/jscode2session?
//				appid=APPID&
//				secret=SECRET&
//				js_code=JSCODE&
//				grant_type=authorization_code
		
		String url = "https://api.weixin.qq.com/sns/jscode2session";
		Map param = new HashMap<>();
		param.put("appid", "换成自己的appid");
		param.put("secret", "换成自己的secret");
		param.put("js_code", code);
		param.put("grant_type", "authorization_code");
		
		String wxResult = HttpClientUtil.doGet(url, param);
		System.out.println(wxResult);
		
		WXSessionModel model = JsonUtils.jsonToPojo(wxResult, WXSessionModel.class);
		
		// 存入session到redis
		redis.set("user-redis-session:" + model.getOpenid(), 
							model.getSession_key(), 
							1000 * 60 * 30);
		
		return IMoocJSONResult.ok();
	}
	
}
  • 工具类:

import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

public class HttpClientUtil {

	public static String doGet(String url, Map param) {

		// 创建Httpclient对象
		CloseableHttpClient httpclient = HttpClients.createDefault();

		String resultString = "";
		CloseableHttpResponse response = null;
		try {
			// 创建uri
			URIBuilder builder = new URIBuilder(url);
			if (param != null) {
				for (String key : param.keySet()) {
					builder.addParameter(key, param.get(key));
				}
			}
			URI uri = builder.build();

			// 创建http GET请求
			HttpGet httpGet = new HttpGet(uri);

			// 执行请求
			response = httpclient.execute(httpGet);
			// 判断返回状态是否为200
			if (response.getStatusLine().getStatusCode() == 200) {
				resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
			}
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (response != null) {
					response.close();
				}
				httpclient.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return resultString;
	}

	public static String doGet(String url) {
		return doGet(url, null);
	}

	public static String doPost(String url, Map param) {
		// 创建Httpclient对象
		CloseableHttpClient httpClient = HttpClients.createDefault();
		CloseableHttpResponse response = null;
		String resultString = "";
		try {
			// 创建Http Post请求
			HttpPost httpPost = new HttpPost(url);
			// 创建参数列表
			if (param != null) {
				List paramList = new ArrayList<>();
				for (String key : param.keySet()) {
					paramList.add(new BasicNameValuePair(key, param.get(key)));
				}
				// 模拟表单
				UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList);
				httpPost.setEntity(entity);
			}
			// 执行http请求
			response = httpClient.execute(httpPost);
			resultString = EntityUtils.toString(response.getEntity(), "utf-8");
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				response.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}

		return resultString;
	}
	
	public static String doPost(String url) {
		return doPost(url, null);
	}
	
	public static String doPostJson(String url, String json) {
		// 创建Httpclient对象
		CloseableHttpClient httpClient = HttpClients.createDefault();
		CloseableHttpResponse response = null;
		String resultString = "";
		try {
			// 创建Http Post请求
			HttpPost httpPost = new HttpPost(url);
			// 创建请求内容
			StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);
			httpPost.setEntity(entity);
			// 执行http请求
			response = httpClient.execute(httpPost);
			resultString = EntityUtils.toString(response.getEntity(), "utf-8");
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				response.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}

		return resultString;
	}
}
/**
 * @Description: 自定义响应数据结构
 * 				这个类是提供给门户,ios,安卓,微信商城用的
 * 				门户接受此类数据后需要使用本类的方法转换成对于的数据类型格式(类,或者list)
 * 				其他自行处理
 * 				200:表示成功
 * 				500:表示错误,错误信息在msg字段中
 * 				501:bean验证错误,不管多少个错误都以map形式返回
 * 				502:拦截器拦截到用户token出错
 * 				555:异常抛出信息
 */
public class JSONResult {

    // 响应业务状态
    private Integer status;

    // 响应消息
    private String msg;

    // 响应中的数据
    private Object data;
    
    private String ok;	// 不使用

    public static JSONResult build(Integer status, String msg, Object data) {
        return new JSONResult(status, msg, data);
    }

    public static JSONResult ok(Object data) {
        return new JSONResult(data);
    }

    public static JSONResult ok() {
        return new JSONResult(null);
    }
    
    public static JSONResult errorMsg(String msg) {
        return new JSONResult(500, msg, null);
    }
    
    public static JSONResult errorMap(Object data) {
        return new JSONResult(501, "error", data);
    }
    
    public static JSONResult errorTokenMsg(String msg) {
        return new JSONResult(502, msg, null);
    }
    
    public static JSONResult errorException(String msg) {
        return new JSONResult(555, msg, null);
    }

    public JSONResult() {

    }

    public JSONResult(Integer status, String msg, Object data) {
        this.status = status;
        this.msg = msg;
        this.data = data;
    }

    public JSONResult(Object data) {
        this.status = 200;
        this.msg = "OK";
        this.data = data;
    }

    public Boolean isOK() {
        return this.status == 200;
    }

    public Integer getStatus() {
        return status;
    }

    public void setStatus(Integer status) {
        this.status = status;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public Object getData() {
        return data;
    }

    public void setData(Object data) {
        this.data = data;
    }

	public String getOk() {
		return ok;
	}

	public void setOk(String ok) {
		this.ok = ok;
	}

}
import java.util.List;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * 
 * @Description: 自定义响应结构, 转换类
 */
public class JsonUtils {

    // 定义jackson对象
    private static final ObjectMapper MAPPER = new ObjectMapper();

    /**
     * 将对象转换成json字符串。
     * 

Title: pojoToJson

*

Description:

* @param data * @return */ public static String objectToJson(Object data) { try { String string = MAPPER.writeValueAsString(data); return string; } catch (JsonProcessingException e) { e.printStackTrace(); } return null; } /** * 将json结果集转化为对象 * * @param jsonData json数据 * @param clazz 对象中的object类型 * @return */ public static T jsonToPojo(String jsonData, Class beanType) { try { T t = MAPPER.readValue(jsonData, beanType); return t; } catch (Exception e) { e.printStackTrace(); } return null; } /** * 将json数据转换成pojo对象list *

Title: jsonToList

*

Description:

* @param jsonData * @param beanType * @return */ public static List jsonToList(String jsonData, Class beanType) { JavaType javaType = MAPPER.getTypeFactory().constructParametricType(List.class, beanType); try { List list = MAPPER.readValue(jsonData, javaType); return list; } catch (Exception e) { e.printStackTrace(); } return null; } }
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Component;

/**
 * @Description: 使用redisTemplate的操作实现类 
 */
@Component
public class RedisOperator {
	
//	@Autowired
//    private RedisTemplate redisTemplate;
	
	@Autowired
	private StringRedisTemplate redisTemplate;
	
	// Key(键),简单的key-value操作

	/**
	 * 实现命令:TTL key,以秒为单位,返回给定 key的剩余生存时间(TTL, time to live)。
	 * 
	 * @param key
	 * @return
	 */
	public long ttl(String key) {
		return redisTemplate.getExpire(key);
	}
	
	/**
	 * 实现命令:expire 设置过期时间,单位秒
	 * 
	 * @param key
	 * @return
	 */
	public void expire(String key, long timeout) {
		redisTemplate.expire(key, timeout, TimeUnit.SECONDS);
	}
	
	/**
	 * 实现命令:INCR key,增加key一次
	 * 
	 * @param key
	 * @return
	 */
	public long incr(String key, long delta) {
		return redisTemplate.opsForValue().increment(key, delta);
	}

	/**
	 * 实现命令:KEYS pattern,查找所有符合给定模式 pattern的 key
	 */
	public Set keys(String pattern) {
		return redisTemplate.keys(pattern);
	}

	/**
	 * 实现命令:DEL key,删除一个key
	 * 
	 * @param key
	 */
	public void del(String key) {
		redisTemplate.delete(key);
	}

	// String(字符串)

	/**
	 * 实现命令:SET key value,设置一个key-value(将字符串值 value关联到 key)
	 * 
	 * @param key
	 * @param value
	 */
	public void set(String key, String value) {
		redisTemplate.opsForValue().set(key, value);
	}

	/**
	 * 实现命令:SET key value EX seconds,设置key-value和超时时间(秒)
	 * 
	 * @param key
	 * @param value
	 * @param timeout
	 *            (以秒为单位)
	 */
	public void set(String key, String value, long timeout) {
		redisTemplate.opsForValue().set(key, value, timeout, TimeUnit.SECONDS);
	}

	/**
	 * 实现命令:GET key,返回 key所关联的字符串值。
	 * 
	 * @param key
	 * @return value
	 */
	public String get(String key) {
		return (String)redisTemplate.opsForValue().get(key);
	}

	// Hash(哈希表)

	/**
	 * 实现命令:HSET key field value,将哈希表 key中的域 field的值设为 value
	 * 
	 * @param key
	 * @param field
	 * @param value
	 */
	public void hset(String key, String field, Object value) {
		redisTemplate.opsForHash().put(key, field, value);
	}

	/**
	 * 实现命令:HGET key field,返回哈希表 key中给定域 field的值
	 * 
	 * @param key
	 * @param field
	 * @return
	 */
	public String hget(String key, String field) {
		return (String) redisTemplate.opsForHash().get(key, field);
	}

	/**
	 * 实现命令:HDEL key field [field ...],删除哈希表 key 中的一个或多个指定域,不存在的域将被忽略。
	 * 
	 * @param key
	 * @param fields
	 */
	public void hdel(String key, Object... fields) {
		redisTemplate.opsForHash().delete(key, fields);
	}

	/**
	 * 实现命令:HGETALL key,返回哈希表 key中,所有的域和值。
	 * 
	 * @param key
	 * @return
	 */
	public Map hgetall(String key) {
		return redisTemplate.opsForHash().entries(key);
	}

	// List(列表)

	/**
	 * 实现命令:LPUSH key value,将一个值 value插入到列表 key的表头
	 * 
	 * @param key
	 * @param value
	 * @return 执行 LPUSH命令后,列表的长度。
	 */
	public long lpush(String key, String value) {
		return redisTemplate.opsForList().leftPush(key, value);
	}

	/**
	 * 实现命令:LPOP key,移除并返回列表 key的头元素。
	 * 
	 * @param key
	 * @return 列表key的头元素。
	 */
	public String lpop(String key) {
		return (String)redisTemplate.opsForList().leftPop(key);
	}

	/**
	 * 实现命令:RPUSH key value,将一个值 value插入到列表 key的表尾(最右边)。
	 * 
	 * @param key
	 * @param value
	 * @return 执行 LPUSH命令后,列表的长度。
	 */
	public long rpush(String key, String value) {
		return redisTemplate.opsForList().rightPush(key, value);
	}

}
  • pom文件



	4.0.0

	com.test
	test-springboot-wxlogin
	0.0.1-SNAPSHOT
	war

	test-springboot-wxlogin
	test-springboot-wxlogin

	
		org.springframework.boot
		spring-boot-starter-parent
		1.5.12.RELEASE
		 
	

	
		UTF-8
		UTF-8
		1.8
	

	
		
			org.springframework.boot
			spring-boot-starter
			
				
				
					org.springframework.boot
					spring-boot-starter-logging
				
			
		
		
		
		
			org.springframework.boot
			spring-boot-starter-log4j
			1.3.8.RELEASE
		

		
			org.springframework.boot
			spring-boot-starter-web
		

		
			org.springframework.boot
			spring-boot-starter-tomcat
			provided
		
		
		
		
			commons-codec
			commons-codec
			1.11
		
		
			org.apache.commons
			commons-lang3
			3.4
		
		
			org.apache.commons
			commons-io
			1.3.2
		
		
		
		
			org.springframework.boot
			spring-boot-starter-data-redis
		
		
			redis.clients
			jedis
			2.9.0
		
		
			org.springframework.data
			spring-data-redis
			1.8.7.RELEASE
		
		
		
		
			org.apache.httpcomponents
			httpclient
			4.3.5
		
	


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