IDEA JPA 表生成实体类 groovy 脚本

注:部分代码来源于互联网

现存问题

无法自动判断主键 只能根据名称判断是否是主键

//现在是根据UUID 判断主键
annos: ("UUID".equals(col.getName())?"\t@Id\n\t@Basic(optional = false)\n\t@GeneratedValue(generator = \"jpa-uuid\")\n":"")+"\t@Column(name = \""+col.getName()+"\" )"]

生成实体类(部分)

package C:.Users.Mxnter.Desktop;


import lombok.Data;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Table;
import java.io.Serializable;
import javax.persistence.*;
import org.hibernate.annotations.GenericGenerator;

import java.util.Date;

/**
 * @Description  
 * @Author IDEA Auto JPA database tables generate entity Script Mxnter
 * @Date 2019-07-10 
 */

@Entity
@Table ( name ="******" )
@Data
@GenericGenerator(name = "jpa-uuid", strategy = "uuid2")
public class MgProfit implements Serializable {


    private static final long serialVersionUID =  5536760774831154871L;

    /**
     * UUID
     */
    @Id
    @Basic(optional = false)
    @GeneratedValue(generator = "jpa-uuid")
    @Column(name = "UUID" )
    private String uuid;

    /**
     * *******
     */
    @Column(name = "APPLY_ID" )
    private String applyId;

Generate ENTITYs.groovy

import com.intellij.database.model.DasTable
import com.intellij.database.model.ObjectKind
import com.intellij.database.util.Case
import com.intellij.database.util.DasUtil
import java.io.*
import 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/)       : "Double",
        (~/(?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 = javaClassName(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) }
}

// 获取包所在文件夹路径
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 ""
  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 java.io.Serializable;"
  out.println "import javax.persistence.*;"
  out.println "import org.hibernate.annotations.GenericGenerator;"
  out.println ""
  Set types = new HashSet()

  fields.each() {
    types.add(it.type)
  }

  if (types.contains("Date")) {
    out.println "import java.util.Date;"
  }

  if (types.contains("InputStream")) {
    out.println "import java.io.InputStream;"
  }
  out.println ""
  out.println "/**\n" +
          " * @Description  \n" +
          " * @Author IDEA Auto JPA database tables generate entity Script Mxnter\n" +
          " * @Date "+ new SimpleDateFormat("yyyy-MM-dd").format(new Date()) + " \n" +
          " */"
  out.println ""
  out.println "@Entity"
  out.println "@Table ( name =\""+table.getName() +"\" )"
  out.println "@Data"
  out.println "@GenericGenerator(name = \"jpa-uuid\", strategy = \"uuid2\")"
  out.println "public class $className implements Serializable {"
  out.println ""
  out.println ""
  out.println genSerialID()
  fields.each() {
    out.println ""
    // 输出注释
    if (isNotEmpty(it.commoent)) {
      out.println "\t/**"
      out.println "\t * ${it.commoent.toString()}"
      out.println "\t */"
    }

    if (it.annos != "") out.println "   ${it.annos.replace("[@Id]", "")}"

    // 输出成员变量
    out.println "\tprivate ${it.type} ${it.name};"
  }

  // 输出get/set方法
//    fields.each() {
//        out.println ""
//        out.println "\tpublic ${it.type} get${it.name.capitalize()}() {"
//        out.println "\t\treturn this.${it.name};"
//        out.println "\t}"
//        out.println ""
//
//        out.println "\tpublic void set${it.name.capitalize()}(${it.type} ${it.name}) {"
//        out.println "\t\tthis.${it.name} = ${it.name};"
//        out.println "\t}"
//    }
  out.println ""
  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: ("UUID".equals(col.getName())?"\t@Id\n\t@Basic(optional = false)\n\t@GeneratedValue(generator = \"jpa-uuid\")\n":"")+"\t@Column(name = \""+col.getName()+"\" )"]
    if("id".equals(Case.LOWER.apply(col.getName())))
      comm.annos +=["@Id"]
    fields += [comm]
  }
}

// 处理类名（这里是因为我的表都是以t_命名的，所以需要处理去掉生成类名时的开头的T，
// 如果你不需要那么请查找用到了 javaClassName这个方法的地方修改为 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}[_]]/, "_")
  // 去除开头的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('')
  }
}

static String genSerialID()
{
  return "\tprivate static final long serialVersionUID =  "+Math.abs(new Random().nextLong())+"L;"
}