使用IDEA+groovy快速生成entity、dto、dao、service、serviceImpl

IamHzc發表於2024-03-13

groovy程式碼

import com.intellij.database.model.DasTable
import com.intellij.database.util.Case
import com.intellij.database.util.DasUtil
import java.text.SimpleDateFormat

/*
 * Available context bindings:
 *   SELECTION   Iterable<DasObject>
 *   PROJECT     project
 *   FILES       files helper
 */

packageName = ""
dtoPackageName = ""
daoPackageName = ""
servicePackageName = ""
serviceImplPackageName = ""
entityImport = ""
daoImport = ""
serviceImport = ""
baseEntityDir = ""
typeMapping = [
        (~/(?i)int|number/)               : "Long",
        (~/(?i)float|double|decimal|real/): "double",
        (~/(?i)datetime|timestamp/)       : "Timestamp",
        (~/(?i)date/)                     : "Date",
        (~/(?i)time/)                     : "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) {
    /*entity*/
    def tableName = table.getName()
    def className = javaName(tableName, true) + "Entity"
    def fields = calcFields(table)
    def entityDir = dir.toString() + "\\model\\entity"
    def entityBaseDir =  "net\\core\\base"
    packageName = entityDir.replaceAll("\\\\", ".").replaceAll("/", ".").replaceAll("^.*src(\\.main\\.java\\.)?", "") + ";"
    baseEntityDir = entityBaseDir.replaceAll("\\\\", ".").replaceAll("/", ".").replaceAll("^.*src(\\.main\\.java\\.)?", "")+".BaseEntity;"
    new File(entityDir, className + ".java").withPrintWriter("utf-8") { out -> generate(out, className, fields, tableName, table.getComment()) }
    entityImport = entityDir.replaceAll("\\\\", ".")
            .replaceAll("/", ".").replaceAll("^.*src(\\.main\\.java\\.)?", "") + "." + className + ";"

    /*DTO*/
    def dtoDir = dir.toString() + "\\model\\dto"
    def dtoClassName = javaName(tableName, true) + "DTO"
    dtoPackageName = dtoDir.replaceAll("\\\\", ".")
            .replaceAll("/", ".").replaceAll("^.*src(\\.main\\.java\\.)?", "") + ";"
    new File(dtoDir, dtoClassName + ".java").withPrintWriter("utf-8") { out -> generateDTO(out, className, dtoClassName, table.getComment()) }

    /*DAO*/
    def daoDir = dir.toString() + "\\dao"
    def daoClassName = javaName(tableName, true) + "Dao"
    daoPackageName = daoDir.replaceAll("\\\\", ".")
            .replaceAll("/", ".").replaceAll("^.*src(\\.main\\.java\\.)?", "") + ";"
    new File(daoDir, daoClassName + ".java").withPrintWriter("utf-8") { out -> generateDAO(out, className, daoClassName, table.getComment()) }
    daoImport = daoDir.replaceAll("\\\\", ".")
            .replaceAll("/", ".").replaceAll("^.*src(\\.main\\.java\\.)?", "") + "." + daoClassName + ";"

    /*Service*/
    def serviceDir = dir.toString() + "\\service"
    def serviceClassName = javaName(tableName, true) + "Service"
    servicePackageName = serviceDir.replaceAll("\\\\", ".")
            .replaceAll("/", ".").replaceAll("^.*src(\\.main\\.java\\.)?", "") + ";"
    new File(serviceDir, serviceClassName + ".java").withPrintWriter("utf-8") { out -> generateService(out, className, serviceClassName, table.getComment()) }
    serviceImport = serviceDir.replaceAll("\\\\", ".")
            .replaceAll("/", ".").replaceAll("^.*src(\\.main\\.java\\.)?", "") + "." + serviceClassName + ";"

    /*ServiceImpl*/
    def serviceImplDir = dir.toString() + "\\service\\impl"
    def serviceImplClassName = javaName(tableName, true) + "ServiceImpl"
    serviceImplPackageName = serviceImplDir.replaceAll("\\\\", ".")
            .replaceAll("/", ".").replaceAll("^.*src(\\.main\\.java\\.)?", "") + ";"
    new File(serviceImplDir, serviceImplClassName + ".java").withPrintWriter("utf-8") { out -> generateServiceImpl(out, className, serviceImplClassName, serviceClassName, daoClassName, table.getComment()) }


}


def generateDAO(out, entityClassName, daoClassName, tableComment){
    out.println "package $daoPackageName"
    out.println ""
    out.println "import io.swagger.annotations.ApiModelProperty;"
    out.println ""
    out.println "import $entityImport"
    out.println "import com.baomidou.mybatisplus.core.mapper.BaseMapper;"
    out.println "import org.apache.ibatis.annotations.Mapper;"
    out.println ""
    out.println "/**\n" +
            " * <P><B>Description</B>$tableComment Dao</P>\n" +
            " * RevisionTrail:(Date/Author/Description)\n" +
            " * " + (new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")).format(new java.util.Date()) + " CREATE\n" +
            " *\n" +
            " * @author Ryan Huang\n" +
            " * @version 1.0\n" +
            " */"
    out.println "@Mapper"
    out.println "public interface $daoClassName extends BaseMapper<$entityClassName> {"
    out.println "}"
}

def generateService(out, entityClassName, serviceClassName, tableComment){
    out.println "package $servicePackageName"
    out.println ""
    out.println "import $entityImport"
    out.println "import com.baomidou.mybatisplus.extension.service.IService;"
    out.println ""
    out.println "/**\n" +
            " * <P><B>Description</B>$tableComment Service</P>\n" +
            " * RevisionTrail:(Date/Author/Description)\n" +
            " * " + (new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")).format(new java.util.Date()) + " CREATE\n" +
            " *\n" +
            " * @author Ryan Huang\n" +
            " * @version 1.0\n" +
            " */"
    out.println "public interface $serviceClassName extends IService<$entityClassName> {"
    out.println "}"
}

def generateServiceImpl(out, entityClassName, serviceImplClassName, serviceClassName,  daoClassName, tableComment){
    out.println "package $serviceImplPackageName"
    out.println "import $entityImport"
    out.println "import org.springframework.stereotype.Service;"
    out.println "import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;"
    out.println "import $daoImport"
    out.println "import $serviceImport"
    out.println ""
    out.println "/**\n" +
            " * <P><B>Description</B>$tableComment ServiceImpl</P>\n" +
            " * RevisionTrail:(Date/Author/Description)\n" +
            " * " + (new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")).format(new java.util.Date()) + " CREATE\n" +
            " *\n" +
            " * @author Ryan Huang\n" +
            " * @version 1.0\n" +
            " */"
    out.println "public class $serviceImplClassName extends ServiceImpl<$daoClassName, $entityClassName> implements $serviceClassName {"
    out.println "}"
}

def generateDTO(out, entityClassName, dtoClassName, tableComment) {
    out.println "package $dtoPackageName"
    out.println ""
    out.println "import com.baomidou.mybatisplus.annotation.TableName;"
    out.println "import io.swagger.annotations.ApiModel;"
    out.println ""
    out.println "import $entityImport"
    out.println ""
    out.println "/**\n" +
            " * <P><B>Description</B>$tableComment DTO</P>\n" +
            " * RevisionTrail:(Date/Author/Description)\n" +
            " * " + (new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")).format(new java.util.Date()) + " CREATE\n" +
            " *\n" +
            " * @author Ryan Huang\n" +
            " * @version 1.0\n" +
            " */"
    out.println "@ApiModel(value = \"$tableComment" + "DTO\")"
    out.println "public class $dtoClassName extends $entityClassName {"
    out.println "}"
}

def generate(out, className, fields, tableName, tableComment) {
    out.println "package $packageName"
    out.println ""
    out.println "import com.baomidou.mybatisplus.annotation.TableName;"
    out.println "import com.baomidou.mybatisplus.annotation.TableField;"
    out.println "import io.swagger.annotations.ApiModelProperty;"
    out.println "import lombok.Getter;"
    out.println "import lombok.Setter;"
    out.println "import $baseEntityDir"
    out.println ""
    out.println "import java.sql.Timestamp;"
    out.println "import java.util.Date;"
    out.println "import java.sql.Time;"
    out.println ""
    out.println "/**\n" +
            " * <P><B>Description</B>$tableComment</P>\n" +
            " * RevisionTrail:(Date/Author/Description)\n" +
            " * " + (new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")).format(new java.util.Date()) + " CREATE\n" +
            " *\n" +
            " * @author Ryan Huang\n" +
            " * @version 1.0\n" +
            " */"
    out.println "@Getter"
    out.println "@Setter"
    out.println "@TableName(\"$tableName\")"
    out.println "public class ${className} extends BaseEntity {"
    fields.each() {
        if ("id".compareToIgnoreCase(it.name) != 0
                && "Creator".compareToIgnoreCase(it.name) != 0
                && "Crtname".compareToIgnoreCase(it.name) != 0
                && "Create".compareToIgnoreCase(it.name) != 0
                && "Modifiedby".compareToIgnoreCase(it.name) != 0
                && "Mfyname".compareToIgnoreCase(it.name) != 0
                && "Modified".compareToIgnoreCase(it.name) != 0
                && "Status".compareToIgnoreCase(it.name) != 0) {
            if (it.annos != "") out.println "  ${it.annos}"
            out.println ""
            out.println "    /**"
            out.println "     * ${it.commoent.toString()}"
            out.println "     */"
            if (isNotEmpty(it.commoent)) {
                out.println "    @ApiModelProperty(value = \"" + it.commoent.toString() + "\")"
            }
            out.println "    @TableField(value=\"${it.tableCol}\")"
            out.println "    private ${it.type} ${it.name};"
        }
    }
    out.println ""
    fields.each() {
        //過濾欄位
        if ("id".compareToIgnoreCase(it.name) != 0
                && "Creator".compareToIgnoreCase(it.name) != 0
                && "Crtname".compareToIgnoreCase(it.name) != 0
                && "Create".compareToIgnoreCase(it.name) != 0
                && "Modifiedby".compareToIgnoreCase(it.name) != 0
                && "Mfyname".compareToIgnoreCase(it.name) != 0
                && "Modified".compareToIgnoreCase(it.name) != 0
                && "Status".compareToIgnoreCase(it.name) != 0) {
            //get set方法
//            out.println "    public ${it.type} get${it.name.capitalize()}() {"
//            out.println "      return ${it.name};"
//            out.println "    }"
//            out.println ""
//            out.println "    public void set${it.name.capitalize()}(${it.type} ${it.name}) {"
//            out.println "      this.${it.name} = ${it.name};"
//            out.println "    }"
//            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
        fields += [[
                           name    : javaName(col.getName(), false),
                           tableCol: col.getName(),
                           type    : typeStr,
                           commoent: col.getComment(),
                           annos   : ""]]
    }
}

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]
}

def isNotEmpty(content) {
    return content != null && content.toString().trim().length() > 0
}

IDEA使用

1、將groovy檔案新增到IDEA

2、選擇需要生成的表,右鍵Tools->Scripted Extendsions->generate POJOs.groovy

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