Java开发中通过脚本生成JavaBean类

打开Generate POJOs.groovy
1.先在中连接mysql数据库

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 = "cn.ithers.blog.pojo;" typeMapping = [ (~/(?i)int/) : "long", (~/(?i)float|double|decimal|real/): "double", (~/(?i)datetime|timestamp/) : "java.sql.Timestamp", (~/(?i)date/) : "java.sql.Date", (~/(?i)time/) : "java.sql.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) { def className = javaName(table.getName(), true) def fields = calcFields(table) new File(dir, className + ".java").withPrintWriter { out -> generate(out, className, fields) } } def generate(out, className, fields) { out.println "package $packageName" out.println "" out.println "" out.println "public class $className {" out.println "" fields.each() { if (it.annos != "") out.println "  ${it.annos}" out.println "  private ${it.type} ${it.name};" } out.println "" fields.each() { out.println "" 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), 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] } 

修改后

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
 */ //包名 packageName = "cn.ithers.blog.pojo;" typeMapping = [ (~/(?i)int/) : "long", (~/(?i)float|double|decimal|real/): "double", (~/(?i)datetime|timestamp/) : "java.sql.Timestamp", (~/(?i)date/) : "java.sql.Date", (~/(?i)time/) : "java.sql.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) { def className = javaName(table.getName(), true) def fields = calcFields(table) def targetClassName = className.substring(2, className.size()) new File(dir, targetClassName + ".java").withPrintWriter { out -> generate(out, targetClassName, fields) } } def generate(out, className, fields) { out.println "package $packageName" out.println "" out.println "import javax.persistence.Entity;" out.println "import javax.persistence.Id;" out.println "import javax.persistence.Table;" out.println "import javax.persistence.Column;" out.println "" out.println "@Entity" out.println "@Table ( name =\"tb_" + Case.LOWER.apply(className) + "\" )" 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 "\tprivate ${it.type} ${it.name};\n" } out.println "" fields.each() { out.println "" out.println "\tpublic ${it.type} get${it.name.capitalize()}() {" out.println "\t\treturn ${it.name};" out.println "\t}" out.println "" out.println "\tpublic void set${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
        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] } 

使用

需要选择生成到哪个路径下

结果

本文地址：https://blog.csdn.net/qq_43554997/article/details/108263686