springmvc+swagger2整合

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整合的过程中遇到了一些问题，特此记录。

问题一：springmvc中使用fastJsonHttpMessageConverter导致swagger2 解析json失败若果换成mappingJackson2HttpMessageConverter就没事儿了，但是感觉fastjson性能更好一些，所以就得硬着头皮解决swagger2与fastjson兼容的问题。网上有很多解决方案，无非就是说换最高版本的fastjson就好了，但是我换了最新版的fastjson还是不行，不知道为什么，所以只能按照网上说的方法，来喽，大概意思就是自定义一个fastjson转换器。上代码

FastJsonHttpMessageConverterEx

package core.swagger;import springfox.documentation.spring.web.json.Json;import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;public class FastJsonHttpMessageConverterEx extends FastJsonHttpMessageConverter {    public FastJsonHttpMessageConverterEx() {        super();        this.getFastJsonConfig().getSerializeConfig().put(Json.class, SwaggerJsonSerializer.instance);    }}

SwaggerJsonSerializer

package core.swagger;import java.io.IOException;import java.lang.reflect.Type;import springfox.documentation.spring.web.json.Json;import com.alibaba.fastjson.parser.DefaultJSONParser;import com.alibaba.fastjson.parser.deserializer.ObjectDeserializer;import com.alibaba.fastjson.serializer.JSONSerializer;import com.alibaba.fastjson.serializer.ObjectSerializer;import com.alibaba.fastjson.serializer.SerializeWriter;public class SwaggerJsonSerializer implements ObjectSerializer, ObjectDeserializer {    public final static SwaggerJsonSerializer instance = new SwaggerJsonSerializer();    @Override    public void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType, int features) throws IOException {        SerializeWriter out = serializer.getWriter();        Json json = (Json) object;        out.write(json.value());    }    @Override    public <T> T deserialze(DefaultJSONParser parser, Type type, Object fieldName) {        return null;    }    @Override    public int getFastMatchToken() {        return 0;    }}

springmvc配置文件

<mvc:annotation-driven><mvc:message-converters register-defaults="true"><bean id="fastJsonHttpMessageConverter" class="core.swagger.FastJsonHttpMessageConverterEx"><property name="supportedMediaTypes"><list><value>text/plain;charset=UTF-8</value><value>text/html;charset=UTF-8</value><value>application/json;charset=UTF-8</value></list></property><property name="features"><array value-type="com.alibaba.fastjson.serializer.SerializerFeature"><value>DisableCircularReferenceDetect</value><value>WriteMapNullValue</value><value>WriteNullNumberAsZero</value><value>WriteNullStringAsEmpty</value><value>WriteNullListAsEmpty</value><value>WriteNullBooleanAsFalse</value></array></property></bean></mvc:message-converters></mvc:annotation-driven>

成功解决问题

问题二：用springmvc写了一个登录拦截器，swagger2的所有请求都拦截了，由于swagger2是引入的jar包，所以跟了下代码，配置了一下拦截器

<mvc:interceptors><mvc:interceptor><mvc:mapping path="/**" /><mvc:exclude-mapping path="/webjars/**" /><mvc:exclude-mapping path="/swagger-resources/**" /><mvc:exclude-mapping path="/v2/**" /><bean class="interceptor.UserSecurityInterceptor"><property name="excludedUrls"><list><value>/tbuser/noUser</value><value>/tbuser/login</value><value>/swagger-ui.html</value></list></property></bean></mvc:interceptor></mvc:interceptors>

成功解决问题

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