首先绑定一个数据库

image.png

image.png

编写脚本

image.png

image.png

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

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

packageName = "net.beautifulbox.mall.pojo;"
typeMapping = [
        (~/(?i)int/)                      : "long",
        (~/(?i)float|double|decimal|real/): "double",
        (~/(?i)datetime|timestamp/)       : "Date",
        (~/(?i)date/)                     : "Date",
        (~/(?i)time/)                     : "Date",
        (~/(?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 tableName = table.getName()
    def fields = calcFields(table)
    def targetClassName = className.substring(2, className.size())
    new File(dir, targetClassName + ".java").withPrintWriter { out -> generate(out, tableName, targetClassName, fields) }
}

def generate(out, tableName, className, fields) {
    out.println "package $packageName"
    out.println ""
    out.println "import com.fasterxml.jackson.annotation.JsonIgnore;"
    out.println "import com.fasterxml.jackson.annotation.JsonProperty;"
    out.println "import javax.persistence.Column;"
    out.println "import javax.persistence.Entity;"
    out.println "import javax.persistence.Id;"
    out.println "import javax.persistence.Table;"
    out.println "import java.util.Date;";
    out.println ""
    out.println "@Entity";
    out.println "@Table( name =\"${tableName}\" )";
    out.println "public class $className {"
    out.println ""
    fields.each() {
        if ('id'.equals(Case.LOWER.apply(it.name))) {
            it.annos = '\t@Id'
        } else if ('order'.equals(Case.LOWER.apply(it.name))) {
            it.annos = "\t@Column(name = \"`" + it.name + "`\" )"
        } else {
            it.annos = "\t@Column(name = \"" + it.name + "\" )"
        }
        if (it.annos != "") out.println "  ${it.annos}"
        out.println "  private ${it.type} ${javaName(it.name, false)};"
    }
    out.println ""
    fields.each() {
        out.println ""
        if ('password'.equals(Case.LOWER.apply(it.name)) || 'create_time'.equals(Case.LOWER.apply(it.name))
                || 'last_login_time'.equals(Case.LOWER.apply(it.name)) || 'reg_ip'.equals(Case.LOWER.apply(it.name))
                || 'login_ip'.equals(Case.LOWER.apply(it.name)) || 'update_time'.equals(Case.LOWER.apply(it.name))) {
            out.println "@JsonIgnore"
        }
        out.println "  public ${it.type} get${javaName(it.name, true)}() {"
        out.println "    return ${javaName(it.name, false)};"
        out.println "  }"
        out.println ""
        if ('password'.equals(Case.LOWER.apply(it.name)) || 'create_time'.equals(Case.LOWER.apply(it.name))
                || 'last_login_time'.equals(Case.LOWER.apply(it.name)) || 'reg_ip'.equals(Case.LOWER.apply(it.name))
                || 'login_ip'.equals(Case.LOWER.apply(it.name)) || 'update_time'.equals(Case.LOWER.apply(it.name))) {
            out.println "@JsonProperty"
        }
        out.println "  public void set${javaName(it.name, true)}(${it.type} ${javaName(it.name, false)}) {"
        out.println "    this.${javaName(it.name, false)} = ${javaName(it.name, false)};"
        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),
name : col.getName(),
type : typeStr,
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]
}

image.png

image.png