fix toBean bug

CHANGELOG.md

@@ -7,6 +7,7 @@
 
 ### 新特性
 ### Bug修复
+* 【setting】     修复Props.toBean方法null的问题
 
 -------------------------------------------------------------------------------------------------------------
 

hutool-setting/src/main/java/cn/hutool/setting/dialect/Props.java

@@ -1,19 +1,5 @@
 package cn.hutool.setting.dialect;
 
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.IOException;
-import java.io.Writer;
-import java.math.BigDecimal;
-import java.math.BigInteger;
-import java.net.URL;
-import java.nio.charset.Charset;
-import java.nio.charset.StandardCharsets;
-import java.nio.file.Path;
-import java.nio.file.WatchEvent;
-import java.util.Date;
-import java.util.Properties;
-
 import cn.hutool.core.bean.BeanUtil;
 import cn.hutool.core.collection.CollectionUtil;
 import cn.hutool.core.convert.Convert;
@@ -39,6 +25,20 @@ import cn.hutool.log.LogFactory;
 import cn.hutool.log.StaticLog;
 import cn.hutool.setting.SettingRuntimeException;
 
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.IOException;
+import java.io.Writer;
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.net.URL;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Path;
+import java.nio.file.WatchEvent;
+import java.util.Date;
+import java.util.Properties;
+
 /**
  * Properties文件读取封装类
  * 
@@ -541,7 +541,7 @@ public final class Props extends Properties implements BasicTypeGetter<String>,
 	 * @since 4.6.3
 	 */
 	public <T> T fillBean(T bean, String prefix) {
-		prefix = StrUtil.addSuffixIfNot(prefix, StrUtil.DOT);
+		prefix = StrUtil.nullToEmpty(StrUtil.addSuffixIfNot(prefix, StrUtil.DOT));
 
 		String key;
 		for (java.util.Map.Entry<Object, Object> entry : this.entrySet()) {

hutool-setting/src/test/java/cn/hutool/setting/test/PropsTest.java

@@ -1,17 +1,19 @@
 package cn.hutool.setting.test;
 
-import java.util.List;
-import java.util.Map;
-
+import cn.hutool.core.date.DateUtil;
+import cn.hutool.log.LogFactory;
+import cn.hutool.log.dialect.console.ConsoleLogFactory;
+import cn.hutool.setting.dialect.Props;
+import lombok.Data;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Ignore;
 import org.junit.Test;
 
-import cn.hutool.log.LogFactory;
-import cn.hutool.log.dialect.console.ConsoleLogFactory;
-import cn.hutool.setting.dialect.Props;
-import lombok.Data;
+import java.util.Date;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
 
 /**
  * Setting单元测试
@@ -67,6 +69,25 @@ public class PropsTest {
 		Assert.assertEquals("owner@mail.com", cfg.getDefaultRecipients().get(1));
 	}
 
+	@Test
+	public void toBeanWithNullPrefixTest(){
+		Props configProp = new Props();
+		Boolean isInit = configProp.getBool("isInit");
+
+		configProp.setProperty("createTime", Objects.requireNonNull(DateUtil.parse("2020-01-01")));
+		configProp.setProperty("isInit", true);
+		configProp.setProperty("stairPlan", 1);
+		configProp.setProperty("stageNum", 2);
+		configProp.setProperty("version", 3);
+		SystemConfig systemConfig = configProp.toBean(SystemConfig.class);
+
+		Assert.assertEquals(DateUtil.parse("2020-01-01"), systemConfig.getCreateTime());
+		Assert.assertEquals(true, systemConfig.getIsInit());
+		Assert.assertEquals("1", systemConfig.getStairPlan());
+		Assert.assertEquals(new Integer(2), systemConfig.getStageNum());
+		Assert.assertEquals("3", systemConfig.getVersion());
+	}
+
 	@Data
 	public static class ConfigProperties {
 		private String host;
@@ -83,4 +104,19 @@ public class PropsTest {
 		private String username;
 		private String password;
 	}
+
+	@Data
+	public static class SystemConfig {
+		private Boolean isInit;//是否初始化
+		private Date createTime;//系统创建时间
+		private String version;//系统版本
+		private String ServiceOS;//服务器系统
+		private String stairPlan;//周期计划 1 自然年周期，2 自然月周期，3 季度周期 4 自定义周期
+		private Date startDate;//周期开始日期
+		private Date nextStartDate;//下一周期开始日期
+		private Integer stageNum;//阶段数目
+		private Integer[] stageContent;//阶段详情
+		private Date theStageTime;//当前阶段开始日期
+		private Date nextStageTime;//当前阶段结束日期/下一阶段开始日期
+	}
 }