SpringBoot使用Jackson，全局反序列化去除字符串前后空格

谁践踏了优雅 2023-07-21 05:44 23阅读 0赞

# 方法一 #

继承SimpleModule

@Component
    public class StringTrimModule extends SimpleModule {
    
    	private static final long serialVersionUID = 1L;
    
    	public StringTrimModule() {
    		addDeserializer(String.class, new StdScalarDeserializer<String>(String.class) {
    			
    			private static final long serialVersionUID = 1L;
    
    			@Override
    			public String deserialize(JsonParser p, DeserializationContext ctxt)
    					throws IOException, JsonProcessingException {
    				String value = p.getValueAsString();
    				return value.trim();
    			}
    		});
    	}
    	
    }

# 方法二、 #

@Bean
        public Jackson2ObjectMapperBuilderCustomizer jackson2ObjectMapperBuilderCustomizer() {
            return new Jackson2ObjectMapperBuilderCustomizer() {
                @Override
                public void customize(Jackson2ObjectMapperBuilder jacksonObjectMapperBuilder) {
                    jacksonObjectMapperBuilder
                            .deserializerByType(String.class, new StdScalarDeserializer<String>(String.class) {
                            	
    							private static final long serialVersionUID = 1L;
    
    							@Override
                                public String deserialize(JsonParser jsonParser, DeserializationContext ctx)
                                        throws IOException {
                                    return StringUtils.trimWhitespace(jsonParser.getValueAsString());
                                }
                            });
                }
            };
        }