前言
我们有时候在开发中，遇到这样的问题，就是我们需要小程序授权登录我们自己的后台，通过小程序的信息换取我们自己后台的token，实现账号密码、小程序授权登录的多种登录方式。
配置
在 SecurityConfig文件中配置
XcxAuthenticationProvider
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public class XcxAuthenticationProvider implements AuthenticationProvider { private UserDetailsService userDetailsService;
@Override public Authentication authenticate(Authentication authentication) throws AuthenticationException { XcxAuthenticationToken authenticationToken = (XcxAuthenticationToken) authentication;
String openId = (String) authenticationToken.getPrincipal();
XcxUserService service= SpringContextUtil.getContext().getBean(XcxUserService. class );
UserDetails userDetails = service.loadUserByOpenId(openId);
// 此时鉴权成功后，应当重新 new 一个拥有鉴权的 authenticationResult 返回 XcxAuthenticationToken authenticationResult = new XcxAuthenticationToken(userDetails, userDetails.getAuthorities());
authenticationResult.setDetails(authenticationToken.getDetails());
return authenticationResult; }
@Override public boolean supports(Class<?> authentication) { // 判断 authentication 是不是 SmsCodeAuthenticationToken 的子类或子接口 return XcxAuthenticationToken. class .isAssignableFrom(authentication); }
public UserDetailsService getUserDetailsService() { return userDetailsService; }
public void setUserDetailsService(UserDetailsService userDetailsService) { this .userDetailsService = userDetailsService; } } |
XcxAuthenticationToken
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public class XcxAuthenticationToken extends AbstractAuthenticationToken { private static final long serialVersionUID = 420L; private final Object principal;
/** * 没登录之前,principal我们使用手机号 * @param openid */ public XcxAuthenticationToken(String openid) { super ((Collection) null ); this .principal = openid; this .setAuthenticated( false ); }
/** * 登录认证之后,principal我们使用用户信息 * @param principal * @param authorities */ public XcxAuthenticationToken(Object principal, Collection<? extends GrantedAuthority> authorities) { super (authorities); this .principal = principal; super .setAuthenticated( true ); } public Object getCredentials() { return null ; } public Object getPrincipal() { return this .principal; } public void setAuthenticated( boolean isAuthenticated) throws IllegalArgumentException { if (isAuthenticated) { throw new IllegalArgumentException( "Cannot set this token to trusted - use constructor which takes a GrantedAuthority list instead" ); } else { super .setAuthenticated( false ); } } public void eraseCredentials() { super .eraseCredentials(); } } |
小程序授权登录
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@RestController @RequestMapping ( "/xcx" ) @AllArgsConstructor @Api (value = "认证模块" , tags = "认证模块" ) public class XcxAuthController {
private JwtService jwtService; private JwtUserDetail jwtUserDetail; private XcxUserService userService; private AuthenticationManager authenticationManager;
@RequestMapping (value = "/login" , method = RequestMethod.POST) @ApiOperation (value = "登录" , notes = "登录" ) public Result login( @RequestBody Map<String, Object> map) { HashMap<String, Object> hashMap = new HashMap<>(); String code = String.valueOf(map.get( "code" )); try { WxMaService wxMaService = WxMaConfiguration.getWxMaService(); WxMaJscode2SessionResult session = wxMaService.getUserService().getSessionInfo(code);
XcxUser user = userService.getOne(Wrappers.<XcxUser>lambdaQuery() .eq(XcxUser::getOpenId, session.getOpenid()), false ); if (ObjectUtil.isNull(user)) { //过滤掉表情 user = XcxUser.builder() .openId(session.getOpenid()) // .nickname(wxMpUser.getNickName()) // .avatar(wxMpUser.getAvatarUrl()) .build(); userService.save(user); } else { userService.updateById(user); } UserDetails userDetails = jwtUserDetail.loadUserByOpenId(session.getOpenid()); authenticationManager.authenticate( new XcxAuthenticationToken(session.getOpenid())); Map<String, Object> parse = JSON.parseObject(JSON.toJSONString(userDetails), Map. class ); String token = jwtService.createToken(parse); hashMap.put( "token" , token); hashMap.put( "user" , userDetails); } catch (Exception e) { e.printStackTrace(); } return Result.success(hashMap); }
} |
这里就基本完成了小程序的授权登录获取token的功能了，希望可以帮助到大家
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原文链接：https://juejin.cn/post/7072602870792585230
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