forked from knyin/finance
423 lines
17 KiB
Java
423 lines
17 KiB
Java
/*
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* Copyright 2019-2020 Zheng Jie
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package me.zhengjie.utils;
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import cn.hutool.core.util.StrUtil;
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import cn.hutool.extra.template.*;
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import lombok.extern.slf4j.Slf4j;
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import me.zhengjie.domain.GenConfig;
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import me.zhengjie.domain.ColumnInfo;
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import org.springframework.util.ObjectUtils;
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import java.io.File;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.Writer;
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import java.time.LocalDate;
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import java.util.*;
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import static me.zhengjie.utils.FileUtil.SYS_TEM_DIR;
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/**
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* 代码生成
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*
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* @author Zheng Jie
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* @date 2019-01-02
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*/
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@Slf4j
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@SuppressWarnings({"unchecked", "all"})
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public class GenUtil {
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private static final String TIMESTAMP = "Timestamp";
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private static final String BIGDECIMAL = "BigDecimal";
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public static final String PK = "PRI";
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public static final String EXTRA = "auto_increment";
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/**
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* 获取后端代码模板名称
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*
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* @return List
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*/
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private static List<String> getAdminTemplateNames() {
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List<String> templateNames = new ArrayList<>();
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templateNames.add("Entity");
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templateNames.add("Dto");
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templateNames.add("Mapper");
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templateNames.add("Controller");
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templateNames.add("QueryCriteria");
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templateNames.add("Service");
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templateNames.add("ServiceImpl");
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templateNames.add("Repository");
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return templateNames;
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}
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/**
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* 获取前端代码模板名称
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*
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* @return List
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*/
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private static List<String> getFrontTemplateNames() {
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List<String> templateNames = new ArrayList<>();
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templateNames.add("index");
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templateNames.add("api");
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return templateNames;
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}
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public static List<Map<String, Object>> preview(List<ColumnInfo> columns, GenConfig genConfig) {
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Map<String, Object> genMap = getGenMap(columns, genConfig);
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List<Map<String, Object>> genList = new ArrayList<>();
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// 获取后端模版
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List<String> templates = getAdminTemplateNames();
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TemplateEngine engine = TemplateUtil.createEngine(new TemplateConfig("template", TemplateConfig.ResourceMode.CLASSPATH));
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for (String templateName : templates) {
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Map<String, Object> map = new HashMap<>(1);
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Template template = engine.getTemplate("admin/" + templateName + ".ftl");
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map.put("content", template.render(genMap));
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map.put("name", templateName);
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genList.add(map);
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}
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// 获取前端模版
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templates = getFrontTemplateNames();
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for (String templateName : templates) {
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Map<String, Object> map = new HashMap<>(1);
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Template template = engine.getTemplate("front/" + templateName + ".ftl");
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map.put(templateName, template.render(genMap));
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map.put("content", template.render(genMap));
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map.put("name", templateName);
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genList.add(map);
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}
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return genList;
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}
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public static String download(List<ColumnInfo> columns, GenConfig genConfig) throws IOException {
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// 拼接的路径：/tmpeladmin-gen-temp/，这个路径在Linux下需要root用户才有权限创建,非root用户会权限错误而失败，更改为： /tmp/eladmin-gen-temp/
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// String tempPath =SYS_TEM_DIR + "eladmin-gen-temp" + File.separator + genConfig.getTableName() + File.separator;
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String tempPath = SYS_TEM_DIR + "eladmin-gen-temp" + File.separator + genConfig.getTableName() + File.separator;
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Map<String, Object> genMap = getGenMap(columns, genConfig);
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TemplateEngine engine = TemplateUtil.createEngine(new TemplateConfig("template", TemplateConfig.ResourceMode.CLASSPATH));
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// 生成后端代码
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List<String> templates = getAdminTemplateNames();
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for (String templateName : templates) {
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Template template = engine.getTemplate("admin/" + templateName + ".ftl");
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String filePath = getAdminFilePath(templateName, genConfig, genMap.get("className").toString(), tempPath + "eladmin" + File.separator);
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assert filePath != null;
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File file = new File(filePath);
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// 如果非覆盖生成
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if (!genConfig.getCover() && FileUtil.exist(file)) {
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continue;
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}
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// 生成代码
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genFile(file, template, genMap);
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}
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// 生成前端代码
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templates = getFrontTemplateNames();
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for (String templateName : templates) {
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Template template = engine.getTemplate("front/" + templateName + ".ftl");
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String path = tempPath + "eladmin-web" + File.separator;
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String apiPath = path + "src" + File.separator + "api" + File.separator;
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String srcPath = path + "src" + File.separator + "views" + File.separator + genMap.get("changeClassName").toString() + File.separator;
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String filePath = getFrontFilePath(templateName, apiPath, srcPath, genMap.get("changeClassName").toString());
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assert filePath != null;
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File file = new File(filePath);
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// 如果非覆盖生成
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if (!genConfig.getCover() && FileUtil.exist(file)) {
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continue;
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}
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// 生成代码
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genFile(file, template, genMap);
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}
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return tempPath;
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}
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public static void generatorCode(List<ColumnInfo> columnInfos, GenConfig genConfig) throws IOException {
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Map<String, Object> genMap = getGenMap(columnInfos, genConfig);
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TemplateEngine engine = TemplateUtil.createEngine(new TemplateConfig("template", TemplateConfig.ResourceMode.CLASSPATH));
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// 生成后端代码
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List<String> templates = getAdminTemplateNames();
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for (String templateName : templates) {
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Template template = engine.getTemplate("admin/" + templateName + ".ftl");
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String rootPath = System.getProperty("user.dir");
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String filePath = getAdminFilePath(templateName, genConfig, genMap.get("className").toString(), rootPath);
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assert filePath != null;
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File file = new File(filePath);
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// 如果非覆盖生成
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if (!genConfig.getCover() && FileUtil.exist(file)) {
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continue;
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}
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// 生成代码
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genFile(file, template, genMap);
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}
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// 生成前端代码
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templates = getFrontTemplateNames();
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for (String templateName : templates) {
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Template template = engine.getTemplate("front/" + templateName + ".ftl");
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String filePath = getFrontFilePath(templateName, genConfig.getApiPath(), genConfig.getPath(), genMap.get("changeClassName").toString());
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assert filePath != null;
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File file = new File(filePath);
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// 如果非覆盖生成
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if (!genConfig.getCover() && FileUtil.exist(file)) {
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continue;
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}
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// 生成代码
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genFile(file, template, genMap);
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}
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}
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// 获取模版数据
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private static Map<String, Object> getGenMap(List<ColumnInfo> columnInfos, GenConfig genConfig) {
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// 存储模版字段数据
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Map<String, Object> genMap = new HashMap<>(16);
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// 接口别名
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genMap.put("apiAlias", genConfig.getApiAlias());
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// 包名称
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genMap.put("package", genConfig.getPack());
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// 模块名称
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genMap.put("moduleName", genConfig.getModuleName());
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// 作者
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genMap.put("author", genConfig.getAuthor());
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// 创建日期
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genMap.put("date", LocalDate.now().toString());
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// 表名
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genMap.put("tableName", genConfig.getTableName());
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// 大写开头的类名
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String className = StringUtils.toCapitalizeCamelCase(genConfig.getTableName());
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// 小写开头的类名
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String changeClassName = StringUtils.toCamelCase(genConfig.getTableName());
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// 判断是否去除表前缀
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if (StringUtils.isNotEmpty(genConfig.getPrefix())) {
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className = StringUtils.toCapitalizeCamelCase(StrUtil.removePrefix(genConfig.getTableName(), genConfig.getPrefix()));
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changeClassName = StringUtils.toCamelCase(StrUtil.removePrefix(genConfig.getTableName(), genConfig.getPrefix()));
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changeClassName = StringUtils.uncapitalize(changeClassName);
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}
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// 保存类名
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genMap.put("className", className);
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// 保存小写开头的类名
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genMap.put("changeClassName", changeClassName);
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// 存在 Timestamp 字段
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genMap.put("hasTimestamp", false);
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// 查询类中存在 Timestamp 字段
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genMap.put("queryHasTimestamp", false);
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// 存在 BigDecimal 字段
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genMap.put("hasBigDecimal", false);
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// 查询类中存在 BigDecimal 字段
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genMap.put("queryHasBigDecimal", false);
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// 是否需要创建查询
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genMap.put("hasQuery", false);
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// 自增主键
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genMap.put("auto", false);
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// 存在字典
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genMap.put("hasDict", false);
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// 存在日期注解
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genMap.put("hasDateAnnotation", false);
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// 保存字段信息
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List<Map<String, Object>> columns = new ArrayList<>();
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// 保存查询字段的信息
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List<Map<String, Object>> queryColumns = new ArrayList<>();
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// 存储字典信息
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List<String> dicts = new ArrayList<>();
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// 存储 between 信息
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List<Map<String, Object>> betweens = new ArrayList<>();
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// 存储不为空的字段信息
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List<Map<String, Object>> isNotNullColumns = new ArrayList<>();
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for (ColumnInfo column : columnInfos) {
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Map<String, Object> listMap = new HashMap<>(16);
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// 字段描述
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listMap.put("remark", column.getRemark());
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// 字段类型
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listMap.put("columnKey", column.getKeyType());
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// 主键类型
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String colType = ColUtil.cloToJava(column.getColumnType());
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// 小写开头的字段名
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String changeColumnName = StringUtils.toCamelCase(column.getColumnName());
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// 大写开头的字段名
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String capitalColumnName = StringUtils.toCapitalizeCamelCase(column.getColumnName());
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if (PK.equals(column.getKeyType())) {
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// 存储主键类型
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genMap.put("pkColumnType", colType);
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// 存储小写开头的字段名
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genMap.put("pkChangeColName", changeColumnName);
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// 存储大写开头的字段名
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genMap.put("pkCapitalColName", capitalColumnName);
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}
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// 是否存在 Timestamp 类型的字段
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if (TIMESTAMP.equals(colType)) {
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genMap.put("hasTimestamp", true);
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}
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// 是否存在 BigDecimal 类型的字段
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if (BIGDECIMAL.equals(colType)) {
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genMap.put("hasBigDecimal", true);
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}
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// 主键是否自增
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if (EXTRA.equals(column.getExtra())) {
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genMap.put("auto", true);
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}
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// 主键存在字典
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if (StringUtils.isNotBlank(column.getDictName())) {
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genMap.put("hasDict", true);
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if(!dicts.contains(column.getDictName()))
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dicts.add(column.getDictName());
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}
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// 存储字段类型
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listMap.put("columnType", colType);
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// 存储字原始段名称
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listMap.put("columnName", column.getColumnName());
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// 不为空
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listMap.put("istNotNull", column.getNotNull());
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// 字段列表显示
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listMap.put("columnShow", column.getListShow());
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// 表单显示
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listMap.put("formShow", column.getFormShow());
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// 表单组件类型
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listMap.put("formType", StringUtils.isNotBlank(column.getFormType()) ? column.getFormType() : "Input");
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// 小写开头的字段名称
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listMap.put("changeColumnName", changeColumnName);
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//大写开头的字段名称
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listMap.put("capitalColumnName", capitalColumnName);
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// 字典名称
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listMap.put("dictName", column.getDictName());
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// 日期注解
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listMap.put("dateAnnotation", column.getDateAnnotation());
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if (StringUtils.isNotBlank(column.getDateAnnotation())) {
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genMap.put("hasDateAnnotation", true);
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}
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// 添加非空字段信息
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if (column.getNotNull()) {
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isNotNullColumns.add(listMap);
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}
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// 判断是否有查询，如有则把查询的字段set进columnQuery
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if (!StringUtils.isBlank(column.getQueryType())) {
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// 查询类型
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listMap.put("queryType", column.getQueryType());
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// 是否存在查询
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genMap.put("hasQuery", true);
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if (TIMESTAMP.equals(colType)) {
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// 查询中存储 Timestamp 类型
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genMap.put("queryHasTimestamp", true);
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}
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if (BIGDECIMAL.equals(colType)) {
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// 查询中存储 BigDecimal 类型
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genMap.put("queryHasBigDecimal", true);
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}
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if ("between".equalsIgnoreCase(column.getQueryType())) {
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betweens.add(listMap);
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} else {
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// 添加到查询列表中
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queryColumns.add(listMap);
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}
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}
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// 添加到字段列表中
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columns.add(listMap);
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}
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// 保存字段列表
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genMap.put("columns", columns);
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// 保存查询列表
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genMap.put("queryColumns", queryColumns);
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// 保存字段列表
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genMap.put("dicts", dicts);
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// 保存查询列表
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genMap.put("betweens", betweens);
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// 保存非空字段信息
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genMap.put("isNotNullColumns", isNotNullColumns);
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return genMap;
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}
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/**
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* 定义后端文件路径以及名称
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*/
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private static String getAdminFilePath(String templateName, GenConfig genConfig, String className, String rootPath) {
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String projectPath = rootPath + File.separator + genConfig.getModuleName();
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String packagePath = projectPath + File.separator + "src" + File.separator + "main" + File.separator + "java" + File.separator;
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if (!ObjectUtils.isEmpty(genConfig.getPack())) {
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packagePath += genConfig.getPack().replace(".", File.separator) + File.separator;
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}
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if ("Entity".equals(templateName)) {
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return packagePath + "domain" + File.separator + className + ".java";
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}
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if ("Controller".equals(templateName)) {
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return packagePath + "rest" + File.separator + className + "Controller.java";
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}
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if ("Service".equals(templateName)) {
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return packagePath + "service" + File.separator + className + "Service.java";
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}
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if ("ServiceImpl".equals(templateName)) {
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return packagePath + "service" + File.separator + "impl" + File.separator + className + "ServiceImpl.java";
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}
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if ("Dto".equals(templateName)) {
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return packagePath + "service" + File.separator + "dto" + File.separator + className + "Dto.java";
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}
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if ("QueryCriteria".equals(templateName)) {
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return packagePath + "service" + File.separator + "dto" + File.separator + className + "QueryCriteria.java";
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}
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if ("Mapper".equals(templateName)) {
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return packagePath + "service" + File.separator + "mapstruct" + File.separator + className + "Mapper.java";
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}
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if ("Repository".equals(templateName)) {
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return packagePath + "repository" + File.separator + className + "Repository.java";
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}
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return null;
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}
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/**
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* 定义前端文件路径以及名称
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*/
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private static String getFrontFilePath(String templateName, String apiPath, String path, String apiName) {
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if ("api".equals(templateName)) {
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return apiPath + File.separator + apiName + ".js";
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}
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if ("index".equals(templateName)) {
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return path + File.separator + "index.vue";
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}
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return null;
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}
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private static void genFile(File file, Template template, Map<String, Object> map) throws IOException {
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// 生成目标文件
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Writer writer = null;
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try {
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FileUtil.touch(file);
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writer = new FileWriter(file);
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template.render(map, writer);
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} catch (TemplateException | IOException e) {
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throw new RuntimeException(e);
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} finally {
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assert writer != null;
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writer.close();
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}
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}
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}
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