查询windows或者linux上 支持的所有字体

最近在搞画图啥的 简单记录下 查询所有支持的字体

public static void main(String[] args) throws Exception {GraphicsEnvironment environment = GraphicsEnvironment.getLocalGraphicsEnvironment();String[] fontName = environment.getAvailableFontFamilyNames();for (int i = 0; i < fontName.length; i++) {System.out.println(fontName[i]);}// 对象转jsonString in = JsonUtils.toJSONString(fonts);}

对象转json 通用方法啥的 也 记录下

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalTimeSerializer;
import com.taiden.common.constant.LocalDateTimeConstant;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections.MapUtils;import java.io.InputStream;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Supplier;@Slf4j
public class JsonUtils {// 加载速度太慢了，放在静态代码块中// private static final ObjectMapper mapper = new ObjectMapper();private static ObjectMapper mapper;/*** 设置一些通用的属性*/static {mapper = new ObjectMapper();// 如果json中有新增的字段并且是实体类类中不存在的，不报错// mapper.configure(DeserializationFeature.FAIL_ON_IGNORED_PROPERTIES, false);// 如果存在未知属性，则忽略不报错mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);// 允许key没有双引号mapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);// 允许key有单引号mapper.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);// 允许整数以0开头mapper.configure(JsonParser.Feature.ALLOW_NUMERIC_LEADING_ZEROS, true);// 允许字符串中存在回车换行控制符mapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_CONTROL_CHARS, true);mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);mapper.disable(DeserializationFeature.ADJUST_DATES_TO_CONTEXT_TIME_ZONE);JavaTimeModule javaTimeModule = new JavaTimeModule();javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(LocalDateTimeConstant.defaultDateTimeFormatter));javaTimeModule.addSerializer(LocalDate.class, new LocalDateSerializer(LocalDateTimeConstant.defaultDateFormatter));javaTimeModule.addSerializer(LocalTime.class, new LocalTimeSerializer(LocalDateTimeConstant.defaultTimeFormatter));javaTimeModule.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(LocalDateTimeConstant.defaultDateTimeFormatter));javaTimeModule.addDeserializer(LocalDate.class, new LocalDateDeserializer(LocalDateTimeConstant.defaultDateFormatter));javaTimeModule.addDeserializer(LocalTime.class, new LocalTimeDeserializer(LocalDateTimeConstant.defaultTimeFormatter));mapper.registerModule(javaTimeModule);}public static String toJSONString(Object obj) {return obj != null ? toJSONString(obj, () -> "", false) : "";}public static String toFormatJSONString(Object obj) {return obj != null ? toJSONString(obj, () -> "", true) : "";}public static String toJSONString(Object obj, Supplier<String> defaultSupplier, boolean format) {try {if (obj == null) {return defaultSupplier.get();}if (obj instanceof String) {return obj.toString();}if (obj instanceof Number) {return obj.toString();}if (format) {return mapper.writerWithDefaultPrettyPrinter().writeValueAsString(obj);}return mapper.writeValueAsString(obj);} catch (Throwable e) {log.error(String.format("toJSONString %s", obj != null ? obj.toString() : "null"), e);}return defaultSupplier.get();}/*** 将对象转换为JSON纯文本*/public static String toJSONPlainString(Object obj) {String replaceJson = toJSONString(obj).replaceAll("\"", "\\\\\"");return "\"" + replaceJson + "\"";}public static <T> T toJavaObject(String value, Class<T> tClass) {return StringUtils.isNotBlank(value) ? toJavaObject(value, tClass, () -> null) : null;}public static <T> T toJavaObject(Object obj, Class<T> tClass) {return obj != null ? toJavaObject(toJSONString(obj), tClass, () -> null) : null;}public static <T> T toJavaObject(InputStream stream, Class<T> tClass) {try {return mapper.readValue(stream, tClass);} catch (Throwable e) {log.error(String.format("toJavaObject exception: \n %s\n %s", stream, tClass), e);}return null;}public static <T> T toJavaObject(String value, Class<T> tClass, Supplier<T> defaultSupplier) {try {if (StringUtils.isBlank(value)) {return defaultSupplier.get();}return mapper.readValue(value, tClass);} catch (Throwable e) {log.error(String.format("toJavaObject exception: \n %s\n %s", value, tClass), e);}return defaultSupplier.get();}public static <T> List<T> toJavaObjectList(String value, Class<T> tClass) {return StringUtils.isNotBlank(value) ? toJavaObjectList(value, tClass, () -> null) : null;}public static <T> List<T> toJavaObjectList(Object obj, Class<T> tClass) {return obj != null ? toJavaObjectList(toJSONString(obj), tClass, () -> null) : null;}public static <T> List<T> toJavaObjectList(String value, Class<T> tClass, Supplier<List<T>> defaultSupplier) {try {if (StringUtils.isBlank(value)) {return defaultSupplier.get();}JavaType javaType = mapper.getTypeFactory().constructParametricType(List.class, tClass);return mapper.readValue(value, javaType);} catch (Throwable e) {log.error(String.format("toJavaObjectList exception \n%s\n%s", value, tClass), e);}return defaultSupplier.get();}// 简单地直接用json复制或者转换(Cloneable)public static <T> T jsonCopy(Object obj, Class<T> tClass) {return obj != null ? toJavaObject(toJSONString(obj), tClass) : null;}public static Map<String, Object> toMap(String value) {return StringUtils.isNotBlank(value) ? toMap(value, () -> null) : null;}public static Map<String, Object> toMap(Object value) {return value != null ? toMap(value, () -> null) : null;}public static Map<String, Object> toMap(Object value, Supplier<Map<String, Object>> defaultSupplier) {if (value == null) {return defaultSupplier.get();}try {if (value instanceof Map) {return (Map<String, Object>) value;}} catch (Exception e) {log.info("fail to convert" + toJSONString(value), e);}return toMap(toJSONString(value), defaultSupplier);}public static Map<String, Object> toMap(String value, Supplier<Map<String, Object>> defaultSupplier) {if (StringUtils.isBlank(value)) {return defaultSupplier.get();}try {return toJavaObject(value, LinkedHashMap.class);} catch (Exception e) {log.error(String.format("toMap exception\n%s", value), e);}return defaultSupplier.get();}public static List<Object> toList(String value) {return StringUtils.isNotBlank(value) ? toList(value, () -> null) : null;}public static List<Object> toList(Object value) {return value != null ? toList(value, () -> null) : null;}public static List<Object> toList(String value, Supplier<List<Object>> defaultSuppler) {if (StringUtils.isBlank(value)) {return defaultSuppler.get();}try {return toJavaObject(value, List.class);} catch (Exception e) {log.error("toList exception\n" + value, e);}return defaultSuppler.get();}public static List<Object> toList(Object value, Supplier<List<Object>> defaultSuppler) {if (value == null) {return defaultSuppler.get();}if (value instanceof List) {return (List<Object>) value;}return toList(toJSONString(value), defaultSuppler);}public static long getLong(Map<String, Object> map, String key) {if (MapUtils.isEmpty(map)) {return 0L;}String valueStr = String.valueOf(map.get(key));if (StringUtils.isBlank(valueStr) || !StringUtils.isNumeric(valueStr)) {return 0L;}return Long.valueOf(valueStr);}public static int getInt(Map<String, Object> map, String key) {if (MapUtils.isEmpty(map)) {return 0;}String valueStr = String.valueOf(map.get(key));if (StringUtils.isBlank(valueStr) || !StringUtils.isNumeric(valueStr)) {return 0;}return Integer.valueOf(valueStr);}}