springboot框架简单的增删改查

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package com.jk;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class CharsApplication {

	public static void main（String[] args） {
		SpringApplication.run（CharsApplication.class args）;
	}
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2019-01-09 21:35  chars\
     文件         268  2018-07-06 15:02  chars\.gitignore
     文件        8996  2018-07-06 15:07  chars\chars.iml
     文件        6468  2018-07-06 15:02  chars\mvnw
     文件        4994  2018-07-06 15:02  chars\mvnw.cmd
     文件        2126  2018-07-06 17:47  chars\pom.xml
     目录           0  2019-01-09 21:35  chars\.idea\
     文件           5  2018-07-06 15:02  chars\.idea\.name
     文件        1171  2018-07-06 15:02  chars\.idea\compiler.xml
     文件         215  2018-07-06 15:02  chars\.idea\encodings.xml
     文件        2454  2018-07-06 15:31  chars\.idea\misc.xml
     文件         250  2018-07-06 15:02  chars\.idea\modules.xml
     文件       52152  2018-07-06 20:27  chars\.idea\workspace.xml
     目录           0  2019-01-09 21:35  chars\.idea\copyright\
     文件          76  2018-07-06 15:02  chars\.idea\copyright\profiles_settings.xml
     目录           0  2019-01-09 21:35  chars\.idea\inspectionProfiles\
     文件         241  2018-07-06 15:31  chars\.idea\inspectionProfiles\profiles_settings.xml
     文件         682  2018-07-06 15:31  chars\.idea\inspectionProfiles\Project_Default.xml
     目录           0  2019-01-09 21:35  chars\.idea\libraries\
     文件         613  2018-07-06 15:07  chars\.idea\libraries\Maven__ch_qos_logback_logback_classic_1_2_3.xml
     文件         592  2018-07-06 15:07  chars\.idea\libraries\Maven__ch_qos_logback_logback_core_1_2_3.xml
     文件         567  2018-07-06 15:07  chars\.idea\libraries\Maven__com_fasterxml_classmate_1_3_4.xml
     文件         689  2018-07-06 15:07  chars\.idea\libraries\Maven__com_fasterxml_jackson_core_jackson_annotations_2_9_0.xml
     文件         640  2018-07-06 15:07  chars\.idea\libraries\Maven__com_fasterxml_jackson_core_jackson_core_2_9_6.xml
     文件         668  2018-07-06 15:07  chars\.idea\libraries\Maven__com_fasterxml_jackson_core_jackson_databind_2_9_6.xml
     文件         719  2018-07-06 15:07  chars\.idea\libraries\Maven__com_fasterxml_jackson_datatype_jackson_datatype_jdk8_2_9_6.xml
     文件         733  2018-07-06 15:07  chars\.idea\libraries\Maven__com_fasterxml_jackson_datatype_jackson_datatype_jsr310_2_9_6.xml
     文件         774  2018-07-06 15:07  chars\.idea\libraries\Maven__com_fasterxml_jackson_module_jackson_module_parameter_names_2_9_6.xml
     文件         591  2018-07-06 15:07  chars\.idea\libraries\Maven__com_jayway_jsonpath_json_path_2_4_0.xml
     文件         745  2018-07-06 15:07  chars\.idea\libraries\Maven__com_vaadin_external_google_android_json_0_0_20131108_vaadin1.xml
     文件         548  2018-07-06 15:07  chars\.idea\libraries\Maven__com_zaxxer_HikariCP_2_7_9.xml
............此处省略2742个文件信息