diff --git a/smtweb-framework/sw-framework-core/src/main/java/cc/smtweb/framework/core/mvc/config/WebMvcConfig.java b/smtweb-framework/sw-framework-core/src/main/java/cc/smtweb/framework/core/mvc/config/WebMvcConfig.java
index c1b8101..aa35f29 100644
--- a/smtweb-framework/sw-framework-core/src/main/java/cc/smtweb/framework/core/mvc/config/WebMvcConfig.java
+++ b/smtweb-framework/sw-framework-core/src/main/java/cc/smtweb/framework/core/mvc/config/WebMvcConfig.java
@@ -16,8 +16,10 @@ import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Primary;
+import org.springframework.http.MediaType;
 import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 import org.springframework.web.method.support.HandlerMethodArgumentResolver;
+import org.springframework.web.servlet.config.annotation.ContentNegotiationConfigurer;
 import org.springframework.web.servlet.config.annotation.CorsRegistry;
 import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
@@ -121,4 +123,10 @@ public class WebMvcConfig implements WebMvcConfigurer {
             log.error("'/files/**' 已经被注册");
         }
     }
+
+    // 所有返回接口Content-Type默认都返回application/json
+    @Override
+    public void configureContentNegotiation(ContentNegotiationConfigurer configurer) {
+        configurer.defaultContentType(MediaType.APPLICATION_JSON);
+    }
 }
diff --git a/smtweb-framework/sw-framework-core/src/main/java/cc/smtweb/framework/core/mvc/controller/ApiController.java b/smtweb-framework/sw-framework-core/src/main/java/cc/smtweb/framework/core/mvc/controller/ApiController.java
index 6b4917c..4ee218c 100644
--- a/smtweb-framework/sw-framework-core/src/main/java/cc/smtweb/framework/core/mvc/controller/ApiController.java
+++ b/smtweb-framework/sw-framework-core/src/main/java/cc/smtweb/framework/core/mvc/controller/ApiController.java
@@ -1,6 +1,7 @@
 package cc.smtweb.framework.core.mvc.controller;
 
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.MediaType;
 import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.PreDestroy;
@@ -25,7 +26,7 @@ public class ApiController {
    * @return 返回对象，一般在函数里面使用R
    * @throws Exception API处理异常
    */
-  @GetMapping("/api/**")
+  @GetMapping(value = "/api/**", produces = {MediaType.APPLICATION_JSON_UTF8_VALUE})
   public Object commonGet(@RequestParam Map<String, Object> params,
                           HttpServletRequest request, HttpServletResponse response) throws Exception {
     String apiUrl = request.getRequestURI().substring(5);
@@ -41,7 +42,7 @@ public class ApiController {
    * @return 返回对象，一般在函数里面使用R
    * @throws Exception API处理异常
    */
-  @PostMapping("/api/**")
+  @PostMapping(value = "/api/**", produces = {MediaType.APPLICATION_JSON_UTF8_VALUE})
   public Object commonPost(@RequestParam Map<String, Object> params, @RequestBody(required = false) String body,
                            HttpServletRequest request, HttpServletResponse response) throws Exception {
     String apiUrl = request.getRequestURI().substring(5);
diff --git a/smtweb-framework/sw-framework-core/src/main/java/cc/smtweb/framework/core/util/JsonUtil.java b/smtweb-framework/sw-framework-core/src/main/java/cc/smtweb/framework/core/util/JsonUtil.java
index 169be36..f752dd9 100644
--- a/smtweb-framework/sw-framework-core/src/main/java/cc/smtweb/framework/core/util/JsonUtil.java
+++ b/smtweb-framework/sw-framework-core/src/main/java/cc/smtweb/framework/core/util/JsonUtil.java
@@ -7,6 +7,7 @@ import cc.smtweb.framework.core.db.vo.ModelTable;
 import cc.smtweb.framework.core.exception.JsonParseException;
 import cc.smtweb.framework.core.util.jackson.*;
 import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.core.JsonGenerator;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.JavaType;
@@ -69,6 +70,7 @@ public class JsonUtil {
         module.addDeserializer(java.util.Date.class, new DateDeserializer());
 
         mapper.registerModule(module);
+        mapper.enable(JsonGenerator.Feature.WRITE_BIGDECIMAL_AS_PLAIN);
     }
 
     public static JsonNode readTree(String body) {
diff --git a/smtweb-framework/sw-framework-core/src/main/resources/config/demo.json b/smtweb-framework/sw-framework-core/src/main/resources/config/demo.json
index e69de29..0631cf2 100644
--- a/smtweb-framework/sw-framework-core/src/main/resources/config/demo.json
+++ b/smtweb-framework/sw-framework-core/src/main/resources/config/demo.json
@@ -0,0 +1,111 @@
+{
+  "fields": [
+    {
+      "name": "mc_id",
+      "fieldType": "1",
+      "dataType": "ID",
+      "null": "1",
+      "default": "-1",
+      "title": "ID"
+    },
+    {
+      "name": "mc_parent_id",
+      "fieldType": "4",
+      "dataType": "ID",
+      "null": "1",
+      "default": "-1",
+      "title": "ID",
+      "link": "2"
+    },
+    {
+      "name": "mc_prj_id",
+      "fieldType": "",
+      "dataType": "ID",
+      "null": "1",
+      "default": "-1",
+      "title": "ID",
+      "link": "1"
+    },
+    {
+      "name": "mc_code",
+      "fieldType": "2",
+      "dataType": "CODE",
+      "null": "0",
+      "default": "",
+      "title": "编码",
+      "link": "",
+      "editor": ""
+    },
+    {
+      "name": "mc_name",
+      "fieldType": "3",
+      "dataType": "NAME",
+      "null": "0",
+      "default": "",
+      "title": "编码",
+      "link": "",
+      "editor": ""
+    },
+    {
+      "name": "mc_create_uid",
+      "fieldType": "7",
+      "dataType": "ID",
+      "null": "1",
+      "default": "-1",
+      "title": "创建人",
+      "link": "",
+      "editor": ""
+    },
+    {
+      "name": "mc_update_uid",
+      "fieldType": "9",
+      "dataType": "ID",
+      "null": "1",
+      "default": "-1",
+      "title": "最后更新人",
+      "link": "",
+      "editor": ""
+    },
+    {
+      "name": "mc_create_at",
+      "fieldType": "8",
+      "dataType": "DATETIME",
+      "null": "1",
+      "default": "-1",
+      "title": "创建时间",
+      "link": "",
+      "editor": ""
+    },
+    {
+      "name": "mc_update_at",
+      "fieldType": "10",
+      "dataType": "DATETIME",
+      "null": "1",
+      "default": "-1",
+      "title": "最后更新时间",
+      "link": "",
+      "editor": ""
+    }
+  ],
+  "indexes": [
+    {
+      "name": "pk",
+      "fields": "mc_id",
+      "type": "P"
+    }
+  ],
+  "caches": [
+    {
+      "name": "pr",
+      "title": "按树型",
+      "fields": "mc_parent_id",
+      "type": "L"
+    },
+    {
+      "name": "prj",
+      "title": "按目录",
+      "fields": "mc_prj_id",
+      "type": "L"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/smtweb-framework/sw-framework-core/target/classes/config/demo.json b/smtweb-framework/sw-framework-core/target/classes/config/demo.json
index e69de29..0631cf2 100644
--- a/smtweb-framework/sw-framework-core/target/classes/config/demo.json
+++ b/smtweb-framework/sw-framework-core/target/classes/config/demo.json
@@ -0,0 +1,111 @@
+{
+  "fields": [
+    {
+      "name": "mc_id",
+      "fieldType": "1",
+      "dataType": "ID",
+      "null": "1",
+      "default": "-1",
+      "title": "ID"
+    },
+    {
+      "name": "mc_parent_id",
+      "fieldType": "4",
+      "dataType": "ID",
+      "null": "1",
+      "default": "-1",
+      "title": "ID",
+      "link": "2"
+    },
+    {
+      "name": "mc_prj_id",
+      "fieldType": "",
+      "dataType": "ID",
+      "null": "1",
+      "default": "-1",
+      "title": "ID",
+      "link": "1"
+    },
+    {
+      "name": "mc_code",
+      "fieldType": "2",
+      "dataType": "CODE",
+      "null": "0",
+      "default": "",
+      "title": "编码",
+      "link": "",
+      "editor": ""
+    },
+    {
+      "name": "mc_name",
+      "fieldType": "3",
+      "dataType": "NAME",
+      "null": "0",
+      "default": "",
+      "title": "编码",
+      "link": "",
+      "editor": ""
+    },
+    {
+      "name": "mc_create_uid",
+      "fieldType": "7",
+      "dataType": "ID",
+      "null": "1",
+      "default": "-1",
+      "title": "创建人",
+      "link": "",
+      "editor": ""
+    },
+    {
+      "name": "mc_update_uid",
+      "fieldType": "9",
+      "dataType": "ID",
+      "null": "1",
+      "default": "-1",
+      "title": "最后更新人",
+      "link": "",
+      "editor": ""
+    },
+    {
+      "name": "mc_create_at",
+      "fieldType": "8",
+      "dataType": "DATETIME",
+      "null": "1",
+      "default": "-1",
+      "title": "创建时间",
+      "link": "",
+      "editor": ""
+    },
+    {
+      "name": "mc_update_at",
+      "fieldType": "10",
+      "dataType": "DATETIME",
+      "null": "1",
+      "default": "-1",
+      "title": "最后更新时间",
+      "link": "",
+      "editor": ""
+    }
+  ],
+  "indexes": [
+    {
+      "name": "pk",
+      "fields": "mc_id",
+      "type": "P"
+    }
+  ],
+  "caches": [
+    {
+      "name": "pr",
+      "title": "按树型",
+      "fields": "mc_parent_id",
+      "type": "L"
+    },
+    {
+      "name": "prj",
+      "title": "按目录",
+      "fields": "mc_prj_id",
+      "type": "L"
+    }
+  ]
+}
\ No newline at end of file