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基于SpringCloud+vue(ElementUI)+mySQL前后端分离设计之--搭建Beans编写Token解析注解

2018-10-12 00:00 841 查看
开发一个博客系统

文章数:菜单文章都没更新完
搭建eureka注册中心 (请先阅读此文章) https://segmentfault.com/a/11...
搭建Beans编写Token解析注解 https://segmentfault.com/a/11...
搭建权限管理系统 https://segmentfault.com/a/11...
搭建后台管理系统 https://segmentfault.com/a/11...
前端Fetch请求封装 https://segmentfault.com/a/11...

1.创建一个maven的空项目,写自己的Entity和工具类在打包之后在其他项目中引入 就可以了;

IDEA打包部署项目到maven

在Idea中的最右边的导航栏中可以看到一个Maven Projects,单击打开,如图所示:

引入Beans项目到当前项目:
<dependency>
<groupId>com.server</groupId>
<artifactId>beans</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
编写Token解析注解(Token的字符串-解析为->为TokenEntity实体)

注解解析Token实例

TokenEntity实体
public class TokenEntity{
private String userId;
private String token;
private Date expiresDate; //过期时间
private Date createDate;  //创建时间

public TokenEntity(String userId, String token, Date expiresDate, Date createDate) {
this.userId = userId;
this.token = token;
this.expiresDate = expiresDate;
this.createDate = createDate;
}

public TokenEntity() {
super();
}

get/set方法略
解析Token的工具类中的方法(此方法根据自己具体如何解析token来编写)
public static Object getToken(String token,String key) throws Exception {
DecodedJWT jwt = verifyToken(token,key);
Map<String, Claim> map = jwt.getClaims();
TokenEntity bean = new TokenEntity();
bean.setUserId(map.get("userId").asString());
bean.setToken(token);
bean.setExpiresDate(jwt.getIssuedAt());
bean.setCreateDate(jwt.getExpiresAt());
return bean;
}
主要注解相关内容来了
注解类
import java.lang.annotation.*;

@Target(ElementType.PARAMETER)
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface RequestToken {
String value();
}
解析类
import com.server.authority.util.TokenUtil;
import com.server.config.SysBaseConfig;
import org.springframework.core.MethodParameter;
import org.springframework.web.bind.support.WebDataBinderFactory;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.ModelAndViewContainer;

public class RequestTokenAnalysis implements HandlerMethodArgumentResolver{
@Override
public boolean supportsParameter(MethodParameter methodParameter) {
return methodParameter.hasParameterAnnotation(RequestToken.class);
}

@Override
public Object resolveArgument(MethodParameter methodParameter, ModelAndViewContainer modelAndViewContainer, NativeWebRequest nativeWebRequest, WebDataBinderFactory webDataBinderFactory) throws Exception {
RequestToken token = methodParameter.getParameterAnnotation(RequestToken.class);
String value = token.value();
Class clazz = methodParameter.getParameterType();
String data = nativeWebRequest.getParameter(value);
if (data == null) {
return clazz.newInstance();
}
Object object = TokenUtil.getToken(data, SysBaseConfig.TOKEN_KEY);
return object;
}
}
测试注解类
@RequestMapping(value = "/token",method = RequestMethod.GET)
@ResponseBody
public TResponse userToken(@RequestToken(ParameterNames.ACCESS_TOKEN) TokenEntity token){
try{
return authorityService.userVerify(token.getToken());
}catch (Exception e){
return tResponse.getTResponse("oxs-pai-appMenu","zh_CN", e.getMessage(), SResponse.getInstance().getSResponse(StatusCode.USER_DEFINED,"异常"));
}
}
例如地址:http://127.0.0.1:8762/auth/token
请求头中添加:at=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1MzI2NTI3MTIsInVzZXJJZCI6IjEiLCJpYXQiOjE1MzI1NjYzMTJ9.z1MweHILT6f2KeUumVSNuuY0F9EYsePQp5JmKJiwDuc
注入注解

import com.server.authority.annotation.RequestTokenAnalysis;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

import java.util.List;

@SpringBootApplication
@EnableEurekaClient
public class AuthorityApplication extends WebMvcConfigurerAdapter {

public static void main(String[] args) {
SpringApplication.run(AuthorityApplication.class, args);
}

@Override
public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
argumentResolvers.add(new RequestTokenAnalysis());
super.addArgumentResolvers(argumentResolvers);
}
}
总结:能够成功解析出TokenEntity
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