java经纬度小数与度分秒相互转换工具类

在工作中遇到对经纬度的小数和度分秒进行互相转换的需求,类似以下:

一.编写工具类

请求参数

package com.sinosoft.springbootplus.lft.business.touristres.dto;import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import lombok.experimental.Accessors;import javax.validation.constraints.NotNull;
import java.math.BigDecimal;/*** 
*经纬度转换实体* 
** @author mc* @date 2023-06-13*/
@Data
@Accessors(chain = true)
@ApiModel(value = "经纬度转换实体", description = "经纬度转换实体")
public class LatitudeLongitudeConvertDto {/*** 类型*/@ApiModelProperty(value = "0:度数,1:小数")@NotNull(message = "经纬度类型不能为空")private String type;/*** 经度*/@ApiModelProperty(value = "经度")private Double longitude;/*** 纬度*/@ApiModelProperty(value = "纬度")private Double latitude ;/*** 经度-度*/@ApiModelProperty(value = "东经-度")private Integer eastMeasure;/*** 经度-分*/@ApiModelProperty(value = "东经-分")private Integer eastDivide;/*** 经度-秒*/@ApiModelProperty(value = "东经-秒")private Double eastSecond;/*** 纬度-度*/@ApiModelProperty(value = "北纬-度")private Integer northMeasure ;/*** 纬度-分*/@ApiModelProperty(value = "北纬-分")private Double northDivide;/*** 纬度-秒*/@ApiModelProperty(value = "北纬-秒")private Double northSecond;
}

转换后实体

package com.sinosoft.springbootplus.lft.business.touristres.vo;import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import lombok.experimental.Accessors;import java.math.BigDecimal;/*** 
* 经纬度转换 viewObject* 
** @author mc* @date 2023-06-13*/
@Data
@Accessors(chain = true)
@ApiModel(value = "经纬度转换实体", description = "经纬度转换实体")
public class LatitudeLongitudeConvertVo {/*** 经度*/@ApiModelProperty(value = "经度")private Double longitude;/*** 纬度*/@ApiModelProperty(value = "纬度")private Double latitude ;/*** 东经-度*/@ApiModelProperty(value = "东经-度")private Integer eastMeasure;/*** 东经-分*/@ApiModelProperty(value = "东经-分")private Integer eastDivide;/*** 东经-秒*/@ApiModelProperty(value = "东经-秒")private Double eastSecond;/*** 北纬-度*/@ApiModelProperty(value = "北纬-度")private Integer northMeasure ;/*** 北纬-分*/@ApiModelProperty(value = "北纬-分")private Integer northDivide;/*** 北纬-秒*/@ApiModelProperty(value = "北纬-秒")private Double northSecond;
}

service层

 /*** 经纬度转换*/public LatitudeLongitudeConvertVo latitudeLongitudeConvert(LatitudeLongitudeConvertDto latitudeLongitudeConvertDto) {LatitudeLongitudeConvertVo latitudeLongitudeConvertVo = LatitudeLongitudeConvert.INSTANCE.latitudeLongitudeConvertDto2LatitudeLongitudeConvertVo(latitudeLongitudeConvertDto);//小数->时分秒if (DECIMAL.equals(latitudeLongitudeConvertDto.getType())) {//纬度DegreeMinuteSecondVo latDegreeMinuteSecondVo = LongitudeAndLatitudeUtils.convertToSexagesimal(latitudeLongitudeConvertDto.getLatitude());//经度DegreeMinuteSecondVo lngDegreeMinuteSecondVo = LongitudeAndLatitudeUtils.convertToSexagesimal(latitudeLongitudeConvertDto.getLongitude());latitudeLongitudeConvertVo.setEastMeasure(lngDegreeMinuteSecondVo.getMeasure());latitudeLongitudeConvertVo.setEastDivide(lngDegreeMinuteSecondVo.getDivide());latitudeLongitudeConvertVo.setEastSecond(lngDegreeMinuteSecondVo.getSecond());latitudeLongitudeConvertVo.setNorthMeasure(latDegreeMinuteSecondVo.getMeasure());latitudeLongitudeConvertVo.setNorthDivide(latDegreeMinuteSecondVo.getDivide());latitudeLongitudeConvertVo.setNorthSecond(latDegreeMinuteSecondVo.getSecond());}//时分秒->小数if (DEGREES.equals(latitudeLongitudeConvertDto.getType())) {//经度double lng = LongitudeAndLatitudeUtils.Dms2D(latitudeLongitudeConvertDto.getEastMeasure(), latitudeLongitudeConvertDto.getEastDivide(), latitudeLongitudeConvertDto.getEastSecond());//纬度double lat = LongitudeAndLatitudeUtils.Dms2D(latitudeLongitudeConvertDto.getNorthMeasure(), latitudeLongitudeConvertDto.getNorthDivide(), latitudeLongitudeConvertDto.getNorthSecond());latitudeLongitudeConvertVo.setLatitude(lat);latitudeLongitudeConvertVo.setLongitude(lng);}return latitudeLongitudeConvertVo;}

工具类

package com.sinosoft.springbootplus.lft.business.touristres.utils;import com.sinosoft.springbootplus.lft.business.touristres.vo.DegreeMinuteSecondVo;
import org.apache.commons.lang3.StringUtils;import java.math.BigDecimal;
import java.text.DecimalFormat;public class LongitudeAndLatitudeUtils {/**** @param du  Integer类型* @param min  double类型* @param sec  double类型* @return   double(经纬度转换之后的小数)*/public static double Dms2D(Integer du,double min,double sec ){double jwd = 0.00;String limit = "";min /= 60;sec /= 3600;double xiaoshu = min + sec;DecimalFormat df = new DecimalFormat("0.000000");String format = df.format(xiaoshu);if (format.substring(0, 1).equals("1")) {du += 1;limit = String.valueOf(du);}String xs = format.substring(1, format.length() - 1);String stringXs = limit + xs;jwd = Double.parseDouble(stringXs)+du;return jwd;}/*** 将小数度数转换为度分秒格式* @param num* @return*/public static DegreeMinuteSecondVo convertToSexagesimal(double num){DecimalFormat df = new DecimalFormat("0.00");DegreeMinuteSecondVo degreeMinuteSecondVo = new DegreeMinuteSecondVo();int du=(int)Math.floor(Math.abs(num));    //获取整数部分double temp=getdPoint(Math.abs(num))*60;int fen=(int)Math.floor(temp); //获取整数部分double miao=getdPoint(temp)*60;String format = df.format(miao);if(num<0){degreeMinuteSecondVo.setMeasure(-du);}else{degreeMinuteSecondVo.setMeasure(du);}degreeMinuteSecondVo.setDivide(fen);degreeMinuteSecondVo.setSecond(Double.parseDouble(format));return degreeMinuteSecondVo;}//获取小数部分private static double getdPoint(double num){double d = num;int fInt = (int) d;BigDecimal b1 = new BigDecimal(Double.toString(d));BigDecimal b2 = new BigDecimal(Integer.toString(fInt));double dPoint = b1.subtract(b2).floatValue();return dPoint;}
}

如果对精度有要求,可以使用以下代码对精度进行控制

double miao = 1.11111;
//0.00是控制在几位小数
DecimalFormat df = new DecimalFormat("0.00");
String format = df.format(miao);

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