原文地址
JPA主动生成POJO
通过表生成POJO类
这篇文章不波及idea配置数据源教程，该文章应用前提是用户已配置好idea数据源
批改自带的生成类
import com.intellij.database.model.DasTableimport com.intellij.database.model.ObjectKindimport com.intellij.database.util.Caseimport com.intellij.database.util.DasUtilimport java.text.SimpleDateFormat/* * Available context bindings: * SELECTION Iterable<DasObject> * PROJECT project * FILES files helper */packageName = ""typeMapping = [ (~/(?i)tinyint|smallint|mediumint/) : "Integer", (~/(?i)int/) : "Long", (~/(?i)bool|bit/) : "Boolean", (~/(?i)float|double|decimal|real/) : "BigDecimal", (~/(?i)datetime|timestamp|date|time/) : "Date", (~/(?i)blob|binary|bfile|clob|raw|image/): "InputStream", (~/(?i)/) : "String"]FILES.chooseDirectoryAndSave("Choose directory", "Choose where to store generated files") { dir -> SELECTION.filter { it instanceof DasTable && it.getKind() == ObjectKind.TABLE }.each { generate(it, dir) }}def generate(table, dir) { def className = javaName(table.getName(), true) def fields = calcFields(table) packageName = getPackageName(dir) PrintWriter printWriter = new PrintWriter(new OutputStreamWriter(new FileOutputStream(new File(dir, className + ".java")), "UTF-8")) printWriter.withPrintWriter { out -> generate(out, className, fields, table) }// new File(dir, className + ".java").withPrintWriter { out -> generate(out, className, fields,table) }}// 获取包所在文件夹门路def getPackageName(dir) { return dir.toString().replaceAll("\\\\", ".").replaceAll("/", ".").replaceAll("^.*src(\\.main\\.java\\.)?", "") + ";"}def generate(out, className, fields, table) { out.println "package $packageName" out.println "" out.println "import lombok.Data;" out.println "import javax.persistence.Column;" out.println "import javax.persistence.Entity;" out.println "import javax.persistence.Table;" out.println "import javax.persistence.Id;" out.println "import javax.persistence.GeneratedValue;" out.println "import java.io.Serializable;" Set types = new HashSet() fields.each() { types.add(it.type) } if (types.contains("Date")) { out.println "import java.util.Date;" } if (types.contains("BigDecimal")) { out.println "import java.math.BigDecimal;" } if (types.contains("InputStream")) { out.println "import java.io.InputStream;" } out.println "" out.println "/**\n" + " * " + table.getName() + "\n" + " * \n" + " * @author <a href = \"mailto:njpkhuan@gmail.com\" > huan </a >\n" + //1. 批改idea为本人名字 " * @date " + new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " \n" + " */" out.println "" out.println "@Data" out.println "@Entity" out.println "@Table ( name =\"" + table.getName() + "\" , schema = \""+ DasUtil.getSchema(table)+"\")" //2. schema = \"前面增加本人的表空间名称(mysql能够不增加, 不必这个schema属性也行) out.println "public class $className implements Serializable {" out.println "" out.println genSerialID() fields.each() { out.println "" // 输入正文 if (isNotEmpty(it.commoent)) { out.println "\t/**" out.println "\t * ${it.commoent.toString()}" out.println "\t */" } if ((it.annos + "").indexOf("[@Id]") >= 0) out.println "\t@Id\r\n\t@GeneratedValue(strategy = GenerationType.IDENTITY)" if (it.annos != "") out.println " ${it.annos.replace("[@Id]", "")}" // 输入成员变量 out.println "\tprivate ${it.type} ${it.name};" } 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 def comm = [ colName : col.getName(), name : javaName(col.getName(), false), type : typeStr, commoent: col.getComment(), annos : "\t@Column(name = \"" + col.getName() + "\" )"] if ("id".equals(Case.LOWER.apply(col.getName()))) comm.annos += ["@Id"] fields += [comm] }}// 这里是解决数据库表前缀的办法，这里解决的是t_xxx命名的表// 曾经批改为应用javaName, 如果有须要能够在def className = javaName(table.getName(), true)中批改为javaClassName// 解决类名（这里是因为我的表都是以t_命名的，所以须要解决去掉生成类名时的结尾的T，// 如果你不须要去掉表的前缀，那么请查找用到了 javaClassName这个办法的中央批改为 javaName 即可）def javaClassName(str, capitalize) { def s = com.intellij.psi.codeStyle.NameUtil.splitNameIntoWords(str) .collect { Case.LOWER.apply(it).capitalize() } .join("") .replaceAll(/[^\p{javaJavaIdentifierPart}[_]]/, "_") // 去除结尾的T http://developer.51cto.com/art/200906/129168.htm s = s[1..s.size() - 1] capitalize || s.length() == 1 ? s : Case.LOWER.apply(s[0]) + s[1..-1]}def javaName(str, capitalize) {// def s = str.split(/(?<=[^\p{IsLetter}])/).collect { Case.LOWER.apply(it).capitalize() }// .join("").replaceAll(/[^\p{javaJavaIdentifierPart}]/, "_")// capitalize || s.length() == 1? s : Case.LOWER.apply(s[0]) + s[1..-1] 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]}def isNotEmpty(content) { return content != null && content.toString().trim().length() > 0}static String changeStyle(String str, boolean toCamel) { if (!str || str.size() <= 1) return str if (toCamel) { String r = str.toLowerCase().split('_').collect { cc -> Case.LOWER.apply(cc).capitalize() }.join('') return r[0].toLowerCase() + r[1..-1] } else { str = str[0].toLowerCase() + str[1..-1] return str.collect { cc -> ((char) cc).isUpperCase() ? '_' + cc.toLowerCase() : cc }.join('') }}//生成序列化的serialVersionUIDstatic String genSerialID() { return "\tprivate static final long serialVersionUID = " + Math.abs(new Random().nextLong()) + "L;"}应用(右击表名)
成果
文件夹要抉择model文件夹，其余文件夹不行
package com.fedtech.sso.config;import lombok.Data;import javax.persistence.*;import java.io.Serializable;import java.util.Date;/** * user * * @author <a href = "mailto:njpkhuan@gmail.com" > huan </a > * @date 2021-02-18 14:49:22 */@Data@Entity@Table ( name ="user" , schema = "pension_pz")public class User implements Serializable { private static final long serialVersionUID = 2682344461617421681L; /** * id */ @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "id" ) private Long id; /** * 用户登录账号 */ @Column(name = "login_name" ) private String loginName; /** * 明码 */ @Column(name = "password" ) private String password; /** * 昵称 */ @Column(name = "nick_name" ) private String nickName; /** * 所属区域 */ @Column(name = "area_id" ) private Long areaId; /** * 所属服务组织/机构 */ @Column(name = "org_id" ) private Long orgId; /** * 所属评估机构 */ @Column(name = "assess_org_id" ) private Long assessOrgId; /** * 电话 */ @Column(name = "phone" ) private String phone; /** * 头像 */ @Column(name = "avatar" ) private String avatar; /** * 性别：1男,2女,0窃密 */ @Column(name = "gender" ) private String gender; /** * 用户认证token */ @Column(name = "token" ) private String token; /** * app验证信息 */ @Column(name = "token_app" ) private String tokenApp; /** * 0:待激活 1:失常 2：已删除 3已禁用 */ @Column(name = "status" ) private String status; /** * 联系人 */ @Column(name = "link_name" ) private String linkName; /** * 邮箱 */ @Column(name = "email" ) private String email; /** * 盐 */ @Column(name = "salt" ) private String salt; /** * 记录创立工夫 */ @Column(name = "create_time" ) private Date createTime; /** * 记录更新工夫 */ @Column(name = "modify_time" ) private Date modifyTime; /** * 组织名称 */ @Column(name = "org_name" ) private String orgName; /** * 省名称 */ @Column(name = "province_name" ) private String provinceName; /** * 市名称 */ @Column(name = "city_name" ) private String cityName; /** * 区县名称 */ @Column(name = "county_name" ) private String countyName; /** * 镇名称 */ @Column(name = "town_name" ) private String townName; /** * 村名称 */ @Column(name = "village_name" ) private String villageName; /** * 创立用户 */ @Column(name = "create_uid" ) private Long createUid;}