修复isXXX转换时的匹配问题

hutool-json/src/test/java/cn/hutool/json/IssueI6H0XFTest.java

@@ -0,0 +1,19 @@
+package cn.hutool.json;
+
+import lombok.Data;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class IssueI6H0XFTest {
+	@Test
+	public void toBeanTest(){
+		final Demo demo = JSONUtil.toBean("{\"biz\":\"A\",\"isBiz\":true}", Demo.class);
+		Assert.assertEquals("A", demo.getBiz());
+		Assert.assertEquals("{\"biz\":\"A\"}", JSONUtil.toJsonStr(demo));
+	}
+
+	@Data
+	static class Demo {
+		String biz;
+	}
+}