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安装

傻瓜式安装，什么都不用勾选，仅需选择安装路径。

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插件

插件安装窗口：「File」→「Settings...」→「Plugins」

推荐插件：

• 汉化插件：Chinese (Simplified) Language Pack / 中文语言包

配置

数据库表转实体类配置

脚本扩展→转到脚本目录，在 schema 下新建 Generate XXXXXXPOJOs.groovy （XXXXXX自定义），内容如下：

提示

生成实体类时建议先生成到其他目录，再复制到项目中。生成后注意检查实体类生成是否符合需求，如有差异，请手动修改实体类。

HibernatePOJOs：

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

packageName = ""
typeMapping = [
        (~/(?i)int|tinyint|smallint|mediumint/)  : "Integer",
        (~/(?i)bigint/)                          : "Long",
        (~/(?i)bool|bit|tinyint(1)/)             : "Boolean",
        (~/(?i)float|double|real|number/)        : "Double",
        (~/(?i)decimal/)                         : "BigDecimal",
        (~/(?i)datetime/)                        : "LocalDateTime",
        (~/(?i)date/)                            : "LocalDate",
        (~/(?i)timestamp/)                       : "Timestamp",
        (~/(?i)time/)                            : "Time",
        (~/(?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)}
}

// 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 "import javax.persistence.Column;"
    out.println "import javax.persistence.Entity;"
    out.println "import javax.persistence.Table;"
    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("InputStream")) {
        out.println "import java.io.InputStream;"
    }
    out.println ""
    out.println "/**\n" +
            " * @author Pang Yandong\n" +
            " * @description \n" +
            " * @date "+ new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " \n" +
            " */"
    out.println "@Entity"
    out.println "@Table(name = \""+table.getName() +"\")"
    out.println "public class $className implements Serializable {"
    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: "\t@Column(name = \""+col.getName()+"\")"]
        if("id".equals(Case.LOWER.apply(col.getName())))
            comm.annos +=["@Id"]
        fields += [comm]
    }
}

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
}

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;"
}

MyBatisPlusPOJOs：

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

packageName = ""
typeMapping = [
        (~/(?i)int|tinyint|smallint|mediumint/)  : "Integer",
        (~/(?i)bigint/)                          : "Long",
        (~/(?i)bool|bit|tinyint(1)/)             : "Boolean",
        (~/(?i)float|double|real/)               : "Double",
        (~/(?i)decimal/)                         : "BigDecimal",
        (~/(?i)datetime/)                        : "LocalDateTime",
        (~/(?i)date/)                            : "LocalDate",
        (~/(?i)timestamp/)                       : "Timestamp",
        (~/(?i)time/)                            : "Time",
        (~/(?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)}
}

// 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 "import com.baomidou.mybatisplus.annotation.IdType;"
    out.println "import com.baomidou.mybatisplus.annotation.TableField;"
    out.println "import com.baomidou.mybatisplus.annotation.TableName;"
    out.println ""
    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("LocalDateTime")) {
        out.println "import java.time.LocalDateTime;"
    }

    if (types.contains("LocalDate")) {
        out.println "import java.time.LocalDate;"
    }

    if (types.contains("InputStream")) {
        out.println "import java.io.InputStream;"
    }
    out.println ""
    out.println "/**\n" +
            " * @author Pang Yandong\n" +
            " * @description \n" +
            " * @date "+ new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " \n" +
            " */"
    out.println "@Entity"
    out.println "@Table(name = \""+table.getName() +"\")"
    out.println "public class $className implements Serializable {"
    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: "\t@TableField(\""+col.getName()+"\")"]
        if("id".equals(Case.LOWER.apply(col.getName())))
            comm.annos +=["@Id"]
        fields += [comm]
    }
}

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
}

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;"
}

其他

启用DBMS_OUTPUT

1. 按Ctrl+F8即可打开或关闭；
2. 2021.3版本之后可右键你的项目→“属性”→“选项”→在“连接”中找到启用DBMS_OUTPUT，勾选即可。