mirror of https://gitee.com/xiaonuobase/snowy
【更新】Jackson配置类重命名
bubu
小诺
parent
82b591cb79
commit
471a9adde4
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@ -1,165 +1,165 @@
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package vip.xiaonuo.core.config;
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import com.fasterxml.jackson.core.JsonGenerator;
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import com.fasterxml.jackson.core.JsonStreamContext;
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import com.fasterxml.jackson.databind.JsonSerializer;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.databind.SerializerProvider;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.context.annotation.Primary;
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import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
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import org.springframework.web.servlet.HandlerInterceptor;
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import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
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import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
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import java.io.IOException;
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import java.lang.reflect.Field;
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import java.util.Collection;
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import java.util.Date;
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import java.util.Map;
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/**
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* Jackson序列化配置
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* 用于处理返回结果null值改为类型初始值等问题
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*/
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@Configuration
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public class JacksonConfig {
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private static final ThreadLocal<Boolean> IS_APP_REQUEST = ThreadLocal.withInitial(() -> false);
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@Bean
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@Primary
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@ConditionalOnMissingBean(ObjectMapper.class)
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public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
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ObjectMapper objectMapper = builder.createXmlMapper(false).build();
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objectMapper.getSerializerProvider().setNullValueSerializer(new JsonSerializer<Object>() {
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@Override
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public void serialize(Object value, JsonGenerator gen, SerializerProvider provider) throws IOException {
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// 若是APP端请求，则处理响应结果字段默认值
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if (IS_APP_REQUEST.get()) {
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handleNullValue(gen);
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} else {
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gen.writeNull();
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}
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}
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private void handleNullValue(JsonGenerator gen) throws IOException {
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JsonStreamContext context = gen.getOutputContext();
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if (context.inObject()) {
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String fieldName = context.getCurrentName();
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Object currentObj = context.getCurrentValue();
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if (currentObj != null) {
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Class<?> clazz = currentObj.getClass();
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Field field = getField(clazz, fieldName);
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if (field != null) {
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setDefaultByType(field.getType(), gen);
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return;
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}
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}
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}
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// 默认处理
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gen.writeString("");
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}
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private Field getField(Class<?> clazz, String fieldName) {
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try {
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Field field = clazz.getDeclaredField(fieldName);
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field.setAccessible(true);
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return field;
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} catch (NoSuchFieldException e) {
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// 查找父类字段
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Class<?> superClass = clazz.getSuperclass();
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while (superClass != null) {
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try {
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Field field = superClass.getDeclaredField(fieldName);
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field.setAccessible(true);
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return field;
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} catch (NoSuchFieldException ex) {
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superClass = superClass.getSuperclass();
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}
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}
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}
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return null;
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}
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private void setDefaultByType(Class<?> type, JsonGenerator gen) throws IOException {
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if (type.isPrimitive()) {
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handlePrimitive(type, gen);
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} else if (type == String.class) {
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gen.writeString("");
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} else if (Number.class.isAssignableFrom(type)) {
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gen.writeNumber(0);
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} else if (type == Boolean.class) {
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gen.writeBoolean(false);
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} else if (type == Date.class) {
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gen.writeString("");
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} else if (type.isArray() || Collection.class.isAssignableFrom(type)) {
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gen.writeStartArray();
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gen.writeEndArray();
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} else if (Map.class.isAssignableFrom(type)) {
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gen.writeStartObject();
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gen.writeEndObject();
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} else {
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gen.writeStartObject();
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gen.writeEndObject();
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}
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}
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private void handlePrimitive(Class<?> type, JsonGenerator gen) throws IOException {
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if (type == int.class) {
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gen.writeNumber(0);
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} else if (type == long.class) {
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gen.writeNumber(0L);
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} else if (type == double.class) {
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gen.writeNumber(0.0);
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} else if (type == float.class) {
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gen.writeNumber(0.0f);
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} else if (type == boolean.class) {
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gen.writeBoolean(false);
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} else if (type == char.class) {
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gen.writeString(String.valueOf('\0'));
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} else {
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gen.writeNull();
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}
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}
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});
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return objectMapper;
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}
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@Bean
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public WebMvcConfigurer webMvcConfigurer() {
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return new WebMvcConfigurer() {
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@Override
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public void addInterceptors(InterceptorRegistry registry) {
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registry.addInterceptor(new HandlerInterceptor() {
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@Override
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public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
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IS_APP_REQUEST.set(isAppRequest(request));
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return true;
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}
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@Override
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public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
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IS_APP_REQUEST.remove();
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}
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});
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}
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};
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}
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/**
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* 判断是否为移动端请求
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* path根据自己项目的实际路径进行判断
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*/
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private boolean isAppRequest(HttpServletRequest request) {
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String path = request.getRequestURI();
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String userAgent = request.getHeader("User-Agent");
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return path.startsWith("/client/c/app/") || path.startsWith("/auth/c/");
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}
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}
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package vip.xiaonuo.core.config;
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import com.fasterxml.jackson.core.JsonGenerator;
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import com.fasterxml.jackson.core.JsonStreamContext;
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import com.fasterxml.jackson.databind.JsonSerializer;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.databind.SerializerProvider;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.context.annotation.Primary;
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import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
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import org.springframework.web.servlet.HandlerInterceptor;
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import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
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import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
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import java.io.IOException;
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import java.lang.reflect.Field;
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import java.util.Collection;
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import java.util.Date;
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import java.util.Map;
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/**
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* Jackson序列化配置
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* 用于处理返回结果null值改为类型初始值等问题
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*/
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@Configuration
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public class JacksonConfigure {
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private static final ThreadLocal<Boolean> IS_APP_REQUEST = ThreadLocal.withInitial(() -> false);
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@Bean
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@Primary
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@ConditionalOnMissingBean(ObjectMapper.class)
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public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
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ObjectMapper objectMapper = builder.createXmlMapper(false).build();
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objectMapper.getSerializerProvider().setNullValueSerializer(new JsonSerializer<Object>() {
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@Override
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public void serialize(Object value, JsonGenerator gen, SerializerProvider provider) throws IOException {
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// 若是APP端请求，则处理响应结果字段默认值
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if (IS_APP_REQUEST.get()) {
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handleNullValue(gen);
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} else {
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gen.writeNull();
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}
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}
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private void handleNullValue(JsonGenerator gen) throws IOException {
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JsonStreamContext context = gen.getOutputContext();
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if (context.inObject()) {
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String fieldName = context.getCurrentName();
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Object currentObj = context.getCurrentValue();
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if (currentObj != null) {
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Class<?> clazz = currentObj.getClass();
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Field field = getField(clazz, fieldName);
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if (field != null) {
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setDefaultByType(field.getType(), gen);
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return;
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}
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}
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}
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// 默认处理
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gen.writeString("");
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}
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private Field getField(Class<?> clazz, String fieldName) {
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try {
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Field field = clazz.getDeclaredField(fieldName);
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field.setAccessible(true);
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return field;
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} catch (NoSuchFieldException e) {
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// 查找父类字段
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Class<?> superClass = clazz.getSuperclass();
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while (superClass != null) {
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try {
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Field field = superClass.getDeclaredField(fieldName);
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field.setAccessible(true);
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return field;
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} catch (NoSuchFieldException ex) {
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superClass = superClass.getSuperclass();
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}
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}
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}
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return null;
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}
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private void setDefaultByType(Class<?> type, JsonGenerator gen) throws IOException {
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if (type.isPrimitive()) {
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handlePrimitive(type, gen);
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} else if (type == String.class) {
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gen.writeString("");
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} else if (Number.class.isAssignableFrom(type)) {
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gen.writeNumber(0);
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} else if (type == Boolean.class) {
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gen.writeBoolean(false);
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} else if (type == Date.class) {
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gen.writeString("");
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} else if (type.isArray() || Collection.class.isAssignableFrom(type)) {
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gen.writeStartArray();
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gen.writeEndArray();
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} else if (Map.class.isAssignableFrom(type)) {
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gen.writeStartObject();
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gen.writeEndObject();
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} else {
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gen.writeStartObject();
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gen.writeEndObject();
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}
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}
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private void handlePrimitive(Class<?> type, JsonGenerator gen) throws IOException {
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if (type == int.class) {
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gen.writeNumber(0);
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} else if (type == long.class) {
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gen.writeNumber(0L);
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} else if (type == double.class) {
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gen.writeNumber(0.0);
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} else if (type == float.class) {
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gen.writeNumber(0.0f);
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} else if (type == boolean.class) {
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gen.writeBoolean(false);
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} else if (type == char.class) {
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gen.writeString(String.valueOf('\0'));
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} else {
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gen.writeNull();
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}
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}
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});
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return objectMapper;
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}
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@Bean
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public WebMvcConfigurer webMvcConfigurer() {
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return new WebMvcConfigurer() {
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@Override
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public void addInterceptors(InterceptorRegistry registry) {
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registry.addInterceptor(new HandlerInterceptor() {
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@Override
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public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
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IS_APP_REQUEST.set(isAppRequest(request));
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return true;
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}
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@Override
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public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
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IS_APP_REQUEST.remove();
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}
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});
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}
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};
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}
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/**
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* 判断是否为移动端请求
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* path根据自己项目的实际路径进行判断
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*/
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private boolean isAppRequest(HttpServletRequest request) {
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String path = request.getRequestURI();
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String userAgent = request.getHeader("User-Agent");
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return path.startsWith("/client/c/app/") || path.startsWith("/auth/c/");
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}
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}
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