idea database 导入实体带注解

Posted 2021-01-28 qin-up

 

 截取表名 1变成0

 

Generate MyPOJOs.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.sql.Date


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

packageName = ""

typeMapping = [
        (~/(?i)tinyint|smallint|mediumint/)      : "Integer",
        (~/(?i)int/)                             : "Integer",
        (~/(?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)
    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 "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 "/**
" +
            " * <p>Date: "+new java.util.Date().toString()+".</p>
" +
            " *
" +
            " * @author (Mr.qin)
" +
            " */"
    out.println "public class $className  implements Serializable {"
    out.println ""
    fields.each() {
        out.println ""
       // 输出成员变量
        out.println "	private ${it.type} ${it.name};//${it.commoent}"
    }

    // 输出get/set方法
    fields.each() {
        out.println ""
        out.println "	public ${it.type} get${it.name.capitalize()}() {"
        out.println "		return this.${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
        def comm =[
                colName : col.getName(),
                name :  changeStyle (javaName(col.getName(), false) ,true),
                type : typeStr,
                commoent: col.getComment()]


        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 = str.split(/[^p{Alnum}]/).collect { def s = Case.LOWER.apply(it).capitalize() }.join("")
    // 去除开头的T  http://developer.51cto.com/art/200906/129168.htm
    s = s[0..s.size() - 1]
    capitalize ? s : Case.LOWER.apply(s[0]) + s[0..-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[0..-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[0..-1]
    }else{
        str = str[0].toLowerCase() + str[0..-1]
        return str.collect{cc -> ((char)cc).isUpperCase() ? ‘_‘ + cc.toLowerCase() : cc}.join(‘‘)
    }
}

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

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