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Groovy自动生成Entity、DTO、VO实体类

DasUtil DbColumnImpl常用方法简介

DasUtil.getColumns(table).reduce([]) { fields, col ->
    col.getName()
    col.getComment()
    col.getDataType().getSpecification()
    col.getTable()
    col.getAt("属性名")
    col.notNull //判断字段是否可以为null
    col.getAt("notNull") //判断字段是否可以为null
}
groovy

生成Entity

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.getName()) }

//    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, name) {
    out.println "package $packageName"
    out.println ""
    Set types = new HashSet()

    fields.each() {
        types.add(it.type)
    }
    out.println "import lombok.Data;\n" +
            "import lombok.Builder;\n" +
            "import com.baomidou.mybatisplus.annotation.*;\n" +
            "import lombok.AllArgsConstructor;\n" +
            "import lombok.NoArgsConstructor;\n"

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

    if (types.contains("InputStream")) {
        out.println "import java.io.InputStream;"
    }
    out.println ""
    out.println "/**"
    out.println " * @author  续加仪"
    out.println " * @date " + new SimpleDateFormat("yyyy-MM-dd").format(new Date())
    out.println " */"
    out.println ""
    out.println "@Data"
    out.println "@Builder"
    out.println "@AllArgsConstructor"
    out.println "@NoArgsConstructor"
    out.println "@TableName(\"" + name + "\")"
    out.println "public class $className {"
    //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}"


        if (it.name == "createTime") {
            out.println "\t@TableField(fill = FieldFill.INSERT)"
        }
        
        if (it.name == "time"  ) {
            out.println "\t@TableField(fill = FieldFill.INSERT_UPDATE)"
        }

        if (  it.name == "updateTime") {
            out.println "\t@TableField(fill = FieldFill.UPDATE)"
        }

        // 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   : ""]
        if ("id".equals(Case.LOWER.apply(col.getName())))
            comm.annos += "\t@TableId(value = \"id\")"
        fields += [comm]
    }
}

// 处理类名（这里是因为我的表都是以tb_命名的，所以需要处理去掉生成类名时的开头的Tb，
// 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Tb
    s = s[2..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;"
}
groovy

生成DTO


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) + "DTO"
    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.getName()) }

//    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, name) {
    out.println "package $packageName"
    out.println ""
    Set types = new HashSet()

    fields.each() {
        types.add(it.type)
    }
    out.println "import lombok.Data;\n" +
            "import lombok.Builder;\n" +
            "import com.baomidou.mybatisplus.annotation.*;\n" +
            "import lombok.AllArgsConstructor;\n" +
            "import lombok.NoArgsConstructor;\n"

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

    if (types.contains("InputStream")) {
        out.println "import java.io.InputStream;"
    }
    out.println ""
    out.println "/**"
    out.println " * @author  续加仪"
    out.println " * @date " + new SimpleDateFormat("yyyy-MM-dd").format(new Date())
    out.println " */"
    out.println ""
    out.println "@Data"
    out.println "@Builder"
    out.println "@AllArgsConstructor"
    out.println "@NoArgsConstructor"
//    out.println "@TableName(\"" + name + "\")"
    out.println "public class $className {"
    //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]", "")}"


//        if (it.name == "createTime") {
//            out.println "\t@TableField(fill = FieldFill.INSERT)"
//        }
//
//        if (it.name == "time" || it.name == "updateTime") {
//            out.println "\t@TableField(fill = FieldFill.UPDATE)"
//        }

        // 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   : "\t@Column(name = \"" + col.getName() + "\" )"]
//        if ("id".equals(Case.LOWER.apply(col.getName())))
//            comm.annos += ["@TableId(value = \"id\")"
            ]
        fields += [comm]
    }
}

// 处理类名（这里是因为我的表都是以tb_命名的，所以需要处理去掉生成类名时的开头的Tb，
// 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Tb
    s = s[2..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;"
}
groovy

生成VO

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) + "VO"
    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.getName()) }

//    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, name) {
    out.println "package $packageName"
    out.println ""
    Set types = new HashSet()

    fields.each() {
        types.add(it.type)
    }
    out.println "import lombok.Data;\n" +
            "import lombok.Builder;\n" +
            "import com.baomidou.mybatisplus.annotation.*;\n" +
            "import lombok.AllArgsConstructor;\n" +
            "import lombok.NoArgsConstructor;\n" +
            "import io.swagger.annotations.ApiModelProperty;\n" +
            "import javax.validation.constraints.NotBlank;\n" +
            "import javax.validation.constraints.NotNull;\n"

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

    if (types.contains("InputStream")) {
        out.println "import java.io.InputStream;"
    }
    out.println ""
    out.println "/**"
    out.println " * @author  续加仪"
    out.println " * @date " + new SimpleDateFormat("yyyy-MM-dd").format(new Date())
    out.println " */"
    out.println ""
    out.println "@Data"
    out.println "@Builder"
    out.println "@AllArgsConstructor"
    out.println "@NoArgsConstructor"
    out.println "@TableName(\"" + name + "\")"
    out.println "public class $className {"
    //out.println ""
    //out.println genSerialID()
    fields.each() {

        if (it.name != "createTime" && it.name != "time" && it.name != "updateTime") {
            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}"

            // 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 = [
                col     : col,
                colName : col.getName(),
                name    : javaName(col.getName(), false),
                type    : typeStr,
                commoent: col.getComment(),
                annos   : (col.notNull && col.getName() != "id" && col.getName() != "status" ? (typeStr == "String" ? "\t@NotBlank" : "\t@NotNull") + "(message = \"" + col.getComment() + "不能为空\")\n" : "") +
                        "\t@ApiModelProperty(name = \"" + col.getName() +

                        "\",value=\"" + col.getComment() +
                        "\"," + (col.notNull && col.getName() != "id" && col.getName() != "status" ? "required = true," : "") +
                        "dataType = \"" + typeStr +
                        "\")"
        ]
        fields += [comm]
    }
}

// 处理类名（这里是因为我的表都是以tb_命名的，所以需要处理去掉生成类名时的开头的Tb，
// 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Tb
    s = s[2..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;"
}
groovy
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