1.优化查询岗位详情，查询无效岗位提示

2.优化微信授权登录，把PKCS5Padding 改成PKCS7Padding并且添加appid验证是否一致问题

ruoyi-bussiness/src/main/java/com/ruoyi/cms/service/impl/JobServiceImpl.java

@@ -617,11 +617,12 @@ public class JobServiceImpl extends ServiceImpl<JobMapper,Job> implements IJobSe
     @Override
     public Job selectHttpJobByJobIdApp(Long jobId,HttpServletRequest request) {
         Job job = jobMapper.selectById(jobId);
-        //查询公司信息
-        if(Objects.nonNull(job.getCompanyId())){
-            Company company = companyMapper.selectById(job.getCompanyId());
-            job.setCompany(company);
+        if(job==null){
+            return null;
         }
+        //查询公司信息
+        Optional.ofNullable(job.getCompanyId()).map(companyMapper::selectById).ifPresent(job::setCompany);
+
         if(SiteSecurityUtils.isLogin()){
             //查询申请信息
             Long applyCount = jobApplyMapper.selectCount(Wrappers.<JobApply>lambdaQuery().eq(JobApply::getJobId, jobId).eq(JobApply::getUserId, SiteSecurityUtils.getUserId()));