springboot整合fastjson

pom.xml

@@ -72,11 +72,6 @@
             <version>1.7</version>
         </dependency>
         <dependency>
-            <groupId>com.alibaba</groupId>
-            <artifactId>fastjson</artifactId>
-            <version>${fastjson.version}</version>
-        </dependency>
-        <dependency>
             <groupId>com.github.penggle</groupId>
             <artifactId>kaptcha</artifactId>
             <version>2.3.2</version>
@@ -99,6 +94,11 @@
         </dependency>
         <dependency>
             <groupId>com.alibaba</groupId>
+            <artifactId>fastjson</artifactId>
+            <version>${fastjson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
             <artifactId>druid</artifactId>
             <version>1.0.31</version>
         </dependency>

src/main/java/com/stylefeng/guns/config/auto/FastjsonAutoConfiguration.java

+package com.stylefeng.guns.config.auto;
+
+import com.alibaba.fastjson.serializer.SerializerFeature;
+import com.alibaba.fastjson.serializer.ValueFilter;
+import com.alibaba.fastjson.support.config.FastJsonConfig;
+import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter4;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * fastjson自动配置类
+ *
+ * @author fengshuonan
+ * @date 2017-05-23 22:56
+ */
+@Configuration
+@ConditionalOnClass(FastJsonHttpMessageConverter4.class)
+@ConditionalOnProperty(
+        name = {"spring.http.converters.preferred-json-mapper"},
+        havingValue = "fastjson",
+        matchIfMissing = true
+)
+public class FastjsonAutoConfiguration {
+
+    @Bean
+    @ConditionalOnMissingBean(FastJsonHttpMessageConverter4.class)
+    public FastJsonHttpMessageConverter4 fastJsonHttpMessageConverter() {
+        FastJsonHttpMessageConverter4 converter = new FastJsonHttpMessageConverter4();
+        FastJsonConfig fastJsonConfig = new FastJsonConfig();
+        fastJsonConfig.setSerializerFeatures(
+                SerializerFeature.PrettyFormat,
+                SerializerFeature.WriteClassName,
+                SerializerFeature.WriteMapNullValue
+        );
+        fastJsonConfig.setDateFormat("yyyy-MM-dd HH:mm:ss");
+        ValueFilter valueFilter = new ValueFilter() {
+            public Object process(Object o, String s, Object o1) {
+                if (null == o1) {
+                    o1 = "";
+                }
+                return o1;
+            }
+        };
+        fastJsonConfig.setSerializeFilters(valueFilter);
+        converter.setFastJsonConfig(fastJsonConfig);
+        return converter;
+    }
+
+}

src/main/resources/application.yml

@@ -14,6 +14,9 @@ spring:
   mvc:
     view:
       prefix: /WEB-INF/view
+  http:
+    converters:
+      preferred-json-mapper: fastjson
 
 ###################  mybatis-plus配置  ###################
 mybatis-plus: