idea——使用Idea自动生成实体类

1、连接数据库


连接上的效果图

有时候table下没有数据表，刷新一下就会出来
2、生成并修改模板
选中要生成实体类的表，右击

这时候会生成一个Generate POJOs.groovy文件，文件位置在

双击打开后编写自己的模板，下面可供参考

importcom.intellij.database.model.DasTableimportcom.intellij.database.util.Caseimportcom.intellij.database.util.DasUtilimportjava.text.SimpleDateFormat/* 关键点请看 TODO *//* 关键点请看 TODO *//* 关键点请看 TODO *//* TODO 项目包名 */
packageName ="com.shengchi.community.admin.modules.fee.model;"

typeMapping =[(~/(?i)int/):"long",(~/(?i)float|double|decimal|real/):"double",(~/(?i)datetime|timestamp/):"java.sql.Date",(~/(?i)date/):"java.sql.Date",(~/(?i)time/):"java.sql.Time",(~/(?i)/):"String"]FILES.chooseDirectoryAndSave("Choose directory","Choose where to store generated files"){ dir ->SELECTION.filter { it instanceofDasTable}.each {generate(it, dir)}}

def generate(table, dir){
    def className =javaName(table.getName(),true)
    def fields =calcFields(table)/* TODO 需要设置编码，否则，导出的脚本会有乱码*/newFile(dir, className +".java").withPrintWriter("utf-8"){ out ->generate(out, className, fields,table)}}

def generate(out, className, fields,table){
    out.println "package $packageName"/* TODO 手动添加项目需要的包*/
    out.println "import lombok.Data;"
    out.println "import com.baomidou.mybatisplus.annotation.TableName;"
    out.println "import lombok.EqualsAndHashCode;"
    out.println "import lombok.experimental.Accessors;"
    out.println "import io.swagger.annotations.ApiModel;"
    out.println "import java.util.Date;"
    out.println "import javax.persistence.Column;"
    out.println "import javax.persistence.Entity;"
    out.println "import javax.persistence.Table;"
    out.println ""/* TODO 添加注释*/
    out.println "/**\n"+" * @Description \n"+" * @Author  MXZ\n"+" * @Date: "+newSimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(newDate())+"\n"+" */"
    out.println ""/* TODO
        1.添加@Data 注解,使用lombok,所以不生成 get/set 方法
        2.需要生成文档,所以使用swagger注解
    */
    out.println "@Data"
    out.println "@TableName(\""+table.getName()+"\")"
    out.println "@EqualsAndHashCode(callSuper = false)"
    out.println "@Accessors(chain = true)"/* TODO 添加表名和表说明*/
    out.println "@ApiModel(value=\" "+ table.getName()+" \", description=\" "+table.getComment()+" \")"
    out.println "public class $className {"
    out.println ""
    fields.each(){/* TODO 添加字段属性和注解*/
        out.println "  @ApiModelProperty(value = \""+it.commoent+"\")"
        out.println "  private ${it.type} ${it.name};"
        out.println " \n"}
    out.println "}"}

def calcFields(table){DasUtil.getColumns(table).reduce([]){ fields, col ->
        def spec =Case.LOWER.apply(col.getDataType().getSpecification())
        def typeStr = typeMapping.find { p, t -> p.matcher(spec).find()}.value
        fields +=[[/* TODO name:字段名 type:字段类型 commoent:字段说明*/
                           name :javaName(col.getName(),false),
                           type : typeStr,
                           commoent: col.getComment()]]}}

def javaName(str, capitalize){
    def s =com.intellij.psi.codeStyle.NameUtil.splitNameIntoWords(str).collect {Case.LOWER.apply(it).capitalize()}.join("").replaceAll(/[^\p{javaJavaIdentifierPart}[_]]/,"_")
    capitalize || s.length()==1? s :Case.LOWER.apply(s[0])+ s[1..-1]}

3、生成实体类

然后选择生成实体类要存放的位置

4、生成结果