diff --git a/src/main/java/cn/chjyj/szwh/service/CertService.java b/src/main/java/cn/chjyj/szwh/service/CertService.java
new file mode 100644
index 0000000..3e15ebb
--- /dev/null
+++ b/src/main/java/cn/chjyj/szwh/service/CertService.java
@@ -0,0 +1,22 @@
+package cn.chjyj.szwh.service;
+
+import cn.chjyj.szwh.bean.Cert;
+
+/**
+ * 证书配置信息
+ */
+public interface CertService {
+    /**
+     * 根据编号查询
+     * @param id
+     * @return
+     */
+    Cert getCertByid(Integer id);
+
+    /**
+     * 根据类型查询
+     * @param stype
+     * @return
+     */
+    Cert getCertByType(String stype);
+}
diff --git a/src/main/java/cn/chjyj/szwh/service/impl/CertServiceImpl.java b/src/main/java/cn/chjyj/szwh/service/impl/CertServiceImpl.java
new file mode 100644
index 0000000..67dba99
--- /dev/null
+++ b/src/main/java/cn/chjyj/szwh/service/impl/CertServiceImpl.java
@@ -0,0 +1,23 @@
+package cn.chjyj.szwh.service.impl;
+
+import cn.chjyj.szwh.bean.Cert;
+import cn.chjyj.szwh.mapper.CertMapper;
+import cn.chjyj.szwh.service.CertService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class CertServiceImpl implements CertService {
+    @Autowired
+    private CertMapper certMapper;
+
+    @Override
+    public Cert getCertByid(Integer id) {
+        return certMapper.getCertByid(id);
+    }
+
+    @Override
+    public Cert getCertByType(String stype) {
+        return certMapper.getCertByType(stype);
+    }
+}
diff --git a/src/test/java/cn/chjyj/szwh/mapper/CertMapperTest.java b/src/test/java/cn/chjyj/szwh/mapper/CertMapperTest.java
new file mode 100644
index 0000000..0b6c637
--- /dev/null
+++ b/src/test/java/cn/chjyj/szwh/mapper/CertMapperTest.java
@@ -0,0 +1,31 @@
+package cn.chjyj.szwh.mapper;
+
+import cn.chjyj.szwh.bean.Cert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.junit.Assert.*;
+
+@SpringBootTest
+@RunWith(SpringRunner.class)
+public class CertMapperTest {
+    @Autowired
+    private CertMapper certMapper;
+
+    @Test
+    public void getCertByid() {
+        int id =1;
+        Cert cert = certMapper.getCertByid(id);
+        System.out.println(cert.getToken());
+    }
+
+    @Test
+    public void getCertByType() {
+        String stype ="entrust";
+        Cert cert = certMapper.getCertByType(stype);
+        System.out.println(cert.getToken());
+    }
+}
\ No newline at end of file