本文主要目的不是爲了說明怎麼生成代碼,而是解決生成實體類時的換行問題
1.項目依賴
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<!--druid連接池-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.9</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-generator</artifactId>
<version>3.2.0</version>
</dependency>
<!-- freemarker -->
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>2.3.29</version>
</dependency>
<!-- fastjson -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.15</version>
</dependency>
<!-- <dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity</artifactId>
<version>2.1</version>
</dependency>-->
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity-engine-core</artifactId>
<version>2.1</version>
</dependency>
<!-- lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.4</version>
<scope>provided</scope>
</dependency>
<!-- swagger-->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.9.2</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.9.2</version>
</dependency>
</dependencies>
2.生成類配置
//獲取用戶輸出
public static String scanner(String tip) {
Scanner scanner = new Scanner(System.in);
StringBuilder help = new StringBuilder();
help.append("請輸入" + tip + ":");
System.out.println(help.toString());
if (scanner.hasNext()) {
String ipt = scanner.next();
if (StringUtils.isNotEmpty(ipt)) {
return ipt;
}
}
throw new MybatisPlusException("請輸入正確的" + tip + "!");
}
public static void main(String[] args) {
// 代碼生成器
AutoGenerator mpg = new MyAutoGenerator();
// 全局配置
GlobalConfig gc = new GlobalConfig();
String projectPath = System.getProperty("user.dir");//獲得當前類的路徑
gc.setOutputDir(projectPath + "/src/main/java");
gc.setAuthor("authorZhao");
gc.setOpen(false);
gc.setSwagger2(true); //實體屬性 Swagger2 註解
mpg.setGlobalConfig(gc);
// 數據源配置
DataSourceConfig dsc = new DataSourceConfig();
dsc.setUrl("jdbc:mysql://localhost:3306/md?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull");
// dsc.setSchemaName("public");
dsc.setDriverName("com.mysql.cj.jdbc.Driver");
dsc.setUsername("賬戶");
dsc.setPassword("密碼");
mpg.setDataSource(dsc);
// 包配置
PackageConfig pc = new PackageConfig();
//pc.setModuleName(scanner("模塊名"));
pc.setParent("com.git");
pc.setController("api.controller");
pc.setEntity("model.entity");
pc.setMapper("mapper");
//pc.setXml()
pc.setServiceImpl("service.impl");
pc.setService("service");
mpg.setPackageInfo(pc);
mpg.setPackageInfo(pc);
// 自定義配置
InjectionConfig cfg = new InjectionConfig() {
@Override
public void initMap() {
// to do nothing
}
};
// 如果模板引擎是 freemarker
//String templatePath = "/templates/mapper.xml.ftl";
// 如果模板引擎是 velocity
String templatePath = "/templates/mapper.xml.vm";
// 自定義輸出配置
List<FileOutConfig> focList = new ArrayList<>();
// 自定義配置會被優先輸出
focList.add(new FileOutConfig(templatePath) {
@Override
public String outputFile(TableInfo tableInfo) {
// 自定義輸出文件名 , 如果你 Entity 設置了前後綴、此處注意 xml 的名稱會跟着發生變化!!
return projectPath + "/src/main/resources/mapper/" + tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML;
}
});
cfg.setFileOutConfigList(focList);
mpg.setCfg(cfg);
/* focList.add(new FileOutConfig("/templates/mapper.java.vm") {
@Override
public String outputFile(TableInfo tableInfo) {
return projectPath + "/src/main/java/" + pc.getParent()+ (org.apache.commons.lang3.StringUtils.isBlank(pc.getModuleName())?"":pc.getModuleName())
+ "/" +"mapper/"+ tableInfo.getEntityName() + "Mapper" + StringPool.DOT_JAVA;
}
});
cfg.setFileOutConfigList(focList);
mpg.setCfg(cfg);*/
/*
cfg.setFileCreate(new IFileCreate() {
@Override
public boolean isCreate(ConfigBuilder configBuilder, FileType fileType, String filePath) {
// 判斷自定義文件夾是否需要創建
checkDir("調用默認方法創建的目錄");
return false;
}
});
*/
// 配置模板
TemplateConfig templateConfig = new TemplateConfig();
// 配置自定義輸出模板
//指定自定義模板路徑,注意不要帶上.ftl/.vm, 會根據使用的模板引擎自動識別
// templateConfig.setEntity("templates/entity2.java");
// templateConfig.setService();
// templateConfig.setController();
templateConfig.setXml(null);
mpg.setTemplate(templateConfig);
// 策略配置
StrategyConfig strategy = new StrategyConfig();
strategy.setNaming(NamingStrategy.underline_to_camel);
strategy.setColumnNaming(NamingStrategy.underline_to_camel);
//strategy.setSuperEntityClass("com.baomidou.ant.common.BaseEntity");
strategy.setEntityLombokModel(true);
strategy.setRestControllerStyle(true);
// 公共父類
//strategy.setSuperControllerClass("com.baomidou.ant.common.BaseController");
// 寫於父類中的公共字段
//strategy.setSuperEntityColumns("id");
strategy.setInclude(scanner("表名,多個英文逗號分割").split(","));
strategy.setControllerMappingHyphenStyle(true);
//strategy.setTablePrefix(pc.getModuleName() + "_");
mpg.setStrategy(strategy);
mpg.setTemplateEngine(new VelocityTemplateEngine());
mpg.execute();
}
上面配置不詳細介紹了,我這裏只用輸入表名就行。
3.出問題的實體類
package com.git.model.entity;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableId;
import java.time.LocalDateTime;
import java.io.Serializable;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.experimental.Accessors;
/**
* <p>
* 博客
* </p>
*
* @author authorZhao
* @since 2019-09-12
*/
@Data
@EqualsAndHashCode(callSuper = false)
@Accessors(chain = true)
@ApiModel(value="OBlog對象", description="博客")
public class OBlog implements Serializable {
private static final long serialVersionUID=1L;
/**
* 博客id
*/
@ApiModelProperty(value = "博客id
")
@TableId(value = "blog_id", type = IdType.AUTO)
private Integer blogId;
/**
* 歸類id
*/
@ApiModelProperty(value = "歸類id")
private Integer categoryId;
經過排除,發現建表的時候,批註多了一個換行導致這樣的問題。
4.解決
public class MyAutoGenerator extends AutoGenerator {
@Override
protected List<TableInfo> getAllTableInfoList(ConfigBuilder config) {
List<TableInfo> tableInfos = super.getAllTableInfoList(config);
tableInfos.forEach(t->{
t.getFields().forEach(f->{
if(org.apache.commons.lang3.StringUtils.isNotBlank(f.getComment())) {
String comment = f.getComment();
comment = comment.replaceAll("\r\n" , "");//注意,替換換行符
f.setComment(comment);
}
});
});
return tableInfos;
}
}
在字段裏面吧換行符替換,我在前面配置的就是用自己的生成器。
5.提供自己的實體模板
模板在mybatisPlus源碼的template下面,我想生成doc註釋,稍微的修改如下
#if("$!field.comment" != "")
#if(${swagger2})
/**
* ${field.comment}
*/
@ApiModelProperty(value = "${field.comment}")
#end
#end
6.結束
這種簡單的問題其實只要改一下數據庫就行,但是碰到我這種強迫症必須解決,
百度一上午還沒解決還是老老實實的看源碼。
本文爲作者原創,轉載請聲明。
參考:mybatisPlus官網代碼生成器