摘要：
内容介绍主要介绍在执行类中使用反射机制调用静态方法。
内容简介
主要介绍使用反射的机制来调用执行类中的静态方法。
静态方法
public class GisUtil { private final static Logger logger = LoggerFactory.getLogger(GisUtil.class); public static ExportMethodResultDto gisService1 (String str){ logger.info("进入gisService1方法，参数[str]:" + str); ExportMethodResultDto dto = new ExportMethodResultDto(); LocalDateTime currentTime = LocalDateTime.now(); DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"); dto.setJobId(df.format(currentTime)); dto.setOutFilePath("E:\DocDirectory\test.doc"); return dto; } public static ExportMethodResultDto gisService2 (ExportProjectRasterParam param){ logger.info("进入gisService2方法..."); logger.info("参数[param]=" + param); ExportMethodResultDto dto = new ExportMethodResultDto(); String uuId = StrUtil.getUUID(); dto.setJobId(uuId); dto.setOutFilePath("E:\"+ uuId +"\srtm_49_02_raster.shp"); return dto; } }
调用
String str = "test_service_1"; Class<?> threadClazz = Class.forName("com.lgt.demo2.gisService.util.GisUtil"); Method method = threadClazz.getMethod("gisService1", String.class); ExportMethodResultDto dto = (ExportMethodResultDto)method.invoke(null, str); logger.info("gisService1返回："); logger.info(" jobId:"+ dto.getJobId()); logger.info(" OutFilePath:" + dto.getOutFilePath()); ExportProjectRasterParam param = new ExportProjectRasterParam(); param.setCellSize("1"); param.setResamplingType("NEAREST"); param.setInCoorSystem("GCS_WGS_1984"); param.setOutCoorSystem("GCS_China_Geodetic_Coordinate_System_2000"); Method method2 = threadClazz.getMethod("gisService2", ExportProjectRasterParam.class); ExportMethodResultDto dto2 = (ExportMethodResultDto)method2.invoke(null,param); logger.info("gisService2返回："); logger.info(" jobId:"+ dto2.getJobId()); logger.info(" OutFilePath:" + dto2.getOutFilePath());
输出结果
2019-07-03 14:51:08.816 INFO 332 --- [nio-8080-exec-2] com.lgt.demo2.gisService.util.GisUtil : 进入gisService1方法，参数[str]:test_service_1 2019-07-03 14:51:08.852 INFO 332 --- [nio-8080-exec-2] c.l.d.f.controller.StringController : gisService1返回： 2019-07-03 14:51:08.853 INFO 332 --- [nio-8080-exec-2] c.l.d.f.controller.StringController : jobId:2019-07-03 14:51:08 2019-07-03 14:51:08.853 INFO 332 --- [nio-8080-exec-2] c.l.d.f.controller.StringController : OutFilePath:E:DocDirectory est.doc 2019-07-03 14:51:08.853 INFO 332 --- [nio-8080-exec-2] com.lgt.demo2.gisService.util.GisUtil : 进入gisService2方法... 2019-07-03 14:51:08.854 INFO 332 --- [nio-8080-exec-2] com.lgt.demo2.gisService.util.GisUtil : 参数[param]=[inCoorSystem:GCS_WGS_1984,outCoorSystem:GCS_China_Geodetic_Coordinate_System_2000,resamplingType:NEAREST,cellSize:1] 2019-07-03 14:51:08.858 INFO 332 --- [nio-8080-exec-2] c.l.d.f.controller.StringController : gisService2返回： 2019-07-03 14:51:08.859 INFO 332 --- [nio-8080-exec-2] c.l.d.f.controller.StringController : jobId:79b4e82ef4564855881ecb4030ba39e2 2019-07-03 14:51:08.859 INFO 332 --- [nio-8080-exec-2] c.l.d.f.controller.StringController : OutFilePath:E:79b4e82ef4564855881ecb4030ba39e2srtm_49_02_raster.shp
用到的实体类
public class ExportMethodResultDto implements Serializable { private String outFilePath;//生成文件的绝对路径 private String jobId;//GIS调用异步服务响应的jobId public String getOutFilePath() { return outFilePath; } public void setOutFilePath(String outFilePath) { this.outFilePath = outFilePath; } public String getJobId() { return jobId; } public void setJobId(String jobId) { this.jobId = jobId; } }
public class ExportProjectRasterParam implements Serializable { private String inCoorSystem;//输入坐标系 private String outCoorSystem;//输出坐标系 private String resamplingType;//重采样算法（可选） private String cellSize;//像元大小（可选） public String getInCoorSystem() { return inCoorSystem; } public void setInCoorSystem(String inCoorSystem) { this.inCoorSystem = inCoorSystem; } public String getOutCoorSystem() { return outCoorSystem; } public void setOutCoorSystem(String outCoorSystem) { this.outCoorSystem = outCoorSystem; } public String getResamplingType() { return resamplingType; } public void setResamplingType(String resamplingType) { this.resamplingType = resamplingType; } public String getCellSize() { return cellSize; } public void setCellSize(String cellSize) { this.cellSize = cellSize; } public String toString(){ return String.format("[inCoorSystem:%s,outCoorSystem:%s,resamplingType:%s,cellSize:%s]",this.inCoorSystem,this.outCoorSystem,this.resamplingType,this.cellSize); } }