1.打開(kāi)Database，點(diǎn)擊+號(hào)-->Data Source-->Oracle如下

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2.在General選項(xiàng)下的URL中填入自己數(shù)據(jù)庫(kù)的連接信息，基本信息會(huì)自動(dòng)補(bǔ)全。格式如:[ jdbc:oracle:thin:@192.168.1.11:1521:aaa ]，然后補(bǔ)全數(shù)據(jù)庫(kù)的賬戶(hù)密碼。

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3.點(diǎn)擊Drivers中的Oracle，在Additional files中點(diǎn)擊+號(hào)添加oracle數(shù)據(jù)庫(kù)驅(qū)動(dòng)。然后點(diǎn)擊Project Data Sources中剛才自己配置的數(shù)據(jù)信息。

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4.點(diǎn)擊Test Connection測(cè)試連接，出現(xiàn)Successful表示連接成功。點(diǎn)擊Apply。

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5.此刻在Database中別可看到自己配置的數(shù)據(jù)庫(kù)，右鍵選擇腳本擴(kuò)展Scripted Extensions-->轉(zhuǎn)到腳本目錄Go to Scripts Directory

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6.打開(kāi)模式schema下的Generate POJOs.groovy文件，將如下內(nèi)容復(fù)制替換

import com.intellij.database.model.DasTable
import com.intellij.database.util.Case
import com.intellij.database.util.DasUtil

import java.text.SimpleDateFormat

/* 關(guān)鍵點(diǎn)請(qǐng)看 TODO */
/* 關(guān)鍵點(diǎn)請(qǐng)看 TODO */
/* 關(guān)鍵點(diǎn)請(qǐng)看 TODO */

typeMapping = [
  (~/(?i)int/)                      : "long",
  (~/(?i)float|double|decimal|real/): "double",
  (~/(?i)datetime|timestamp/)       : "java.sql.Timestamp",
  (~/(?i)date/)                     : "Date",
  (~/(?i)time/)                     : "java.sql.Time",
  (~/(?i)/)                         : "String"
]

FILES.chooseDirectoryAndSave("Choose directory", "Choose where to store generated files") { dir ->
  SELECTION.filter { it instanceof DasTable }.each { generate(it, dir) }
}

def generate(table, dir) {
  def className = javaName(table.getName(), true)
  def fields = calcFields(table)
   packageName = getPackageName(dir)
  /* TODO 需要設(shè)置編碼，否則，導(dǎo)出的腳本會(huì)有亂碼*/
  new File(dir, className + ".java").withPrintWriter("utf-8") { out -> generate(out, className, fields,table) }
}

// 獲取包所在文件夾路徑
def getPackageName(dir) {
    return dir.toString().replaceAll("\\\\", ".").replaceAll("/", ".").replaceAll("^.*src(\\.main\\.java\\.)?", "") + ";"
}
def generate(out, className, fields,table) {
  out.println "package $packageName"
  /* TODO 手動(dòng)添加項(xiàng)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 java.io.Serializable;"
  out.println ""
  /* TODO 添加注釋*/
  out.println "/**\n" +
            " * @Description \n" +
            " * @Author  Functional Manager\n" +
            " * @Date: "+new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) +"\n" +
            " */"
  out.println ""
  /* TODO
      1.添加@Data 注解,使用lombok,所以不生成 get/set 方法
      2.需要生成文檔,所以使用swagger注解
  */
  out.println "@Data"
  out.println "@TableName(\""+table.getName()+"\")"
  /* TODO 添加表名和表說(shuō)明*/
  out.println "@ApiModel(value=\" " + table.getName()+" \", description=\" "+table.getComment()+" \")"
  out.println "public class $className {"
  out.println ""
  fields.each() {
    /* TODO 添加字段屬性和注解*/
    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:字段類(lèi)型 commoent:字段說(shuō)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]
}

7.點(diǎn)擊Scratches選擇Project切換回項(xiàng)目目錄

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8.選擇需要生成的表，右鍵選擇腳本擴(kuò)展Scripted Extensions-->Generate POJOs.groovy

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9.選擇實(shí)體類(lèi)需要生成的目錄位置即可。

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