springboot笔记

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设置feign超时时间：

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feign.Request.Options
@Bean
    public Request.Options options(){
        Request.Options options = new Request.Options(1000*60*5,1000*60*5);
        return options;
    }

线程池报错：

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java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.F
feign:
  hystrix:
    enabled: false

spring boot redis配置：

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http://www.cnblogs.com/ityouknow/p/5748830.html

json返回值为null被删去：

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@Bean
@Primary
@ConditionalOnMissingBean(ObjectMapper.class)
public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
ObjectMapper objectMapper = builder.createXmlMapper(false).build(); 
objectMapper.getSerializerProvider().setNullValueSerializer(new com.fasterxml.jackson.databind.JsonSerializer<Object>(){
@Override
            public void serialize(Object o, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) 
            throws IOException, JsonProcessingException {
            jsonGenerator.writeString("ggg");
            }
             });
        return objectMapper;
    }

同源策略：

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@Override  
public void addCorsMappings(CorsRegistry registry) {  
    registry.addMapping("/**")  
            .allowedOrigins("*")  
            .allowCredentials(true)  
            .allowedMethods("GET", "POST", "DELETE", "PUT")  
            .maxAge(3600);  
}