Builgen 插件——IntelliJ IDEA和Eclipse Java Bean Builder模式代码生成器

女爷i 2022-06-09 08:22 305阅读 0赞

# Builgen-plugin #

### 文章目录 ###

*  Builgen-plugin
 *   *  用法
     *   *  eclipse
         *  IntelliJ IDEA

\#\#介绍

*  `builder`模式在越来越多的项目中使用，类似于`alibaba fastjson JSONObject.fluentPut()`，调用一个方法后返回这个对象本身，特别适合构建一些参数超级多的对象，代码优雅且易读。构建一个对象变成了`SomeObject some = new SomeObject().a("a").b("b").c("c").biuld();`。
 *  `ItellJ IDEA`和`Eclipse`的`generator`只能生成传统的`getter setter`，后来`IDEA`新版本中可以选择`builder`模式，生成的`setter`方法不再返回`void`，而是返回对象本身，属于简易的`builder`模式，于是自己写了一个插件供参考，提供一种思路。
 *  源码：[Builgen-plugin][]

## 用法 ##

### eclipse ###

> T测试环境:`JDK 1.8` \+ `Eclipse Oxygen Release (4.7.0)`

*  复制[`Builgen_1.0.0.201708310007.jar`][Builgen_1.0.0.201708310007.jar] 到`eclipse`的`plugins`目录。
 *  删除目录下的`eclipse\configuration\org.eclipse.update` 文件夹.
 *  重启`ecplise`加上`-clean` option(Windows:`cmd->cd $dir_eclipse.exe->run cmd 'eclipse -clean'`)。
 *  创建一个`Java Bean`。

public class TestBean { 
          private String mes;
          private int[] inteters;
          private List<String> strings;
          private List<Map<String, Object>> ddd;
          private boolean klk;
          private double dst;
      }

*  在左侧文件管理器内右键对应文件,在末尾点击`Builgen` 。
    
    ![eclipse-rk][]
 *  文件内容将被替换：
    
        public class TestBean { 
            private String mes;
            private int[] inteters;
            private List<String> strings;
            private List<Map<String, Object>> ddd;
            private boolean klk;
            private double dst;
        
            public TestBean(TestBean testBean) { 
                this.mes = testBean.getMes();
                this.inteters = testBean.getInteters();
                this.strings = testBean.getStrings();
                this.ddd = testBean.getDdd();
                this.klk = testBean.getKlk();
                this.dst = testBean.getDst();
            }
        
            public TestBean() { 
            }
        
            public static class TestBeanBuilder { 
                TestBean testBean;
        
                public TestBeanBuilder() { 
                    testBean = new TestBean();
                }
        
                public TestBeanBuilder mes(String mes) { 
                    testBean.setMes(mes);
                    return this;
                }
        
                public TestBeanBuilder inteters(int[] inteters) { 
                    testBean.setInteters(inteters);
                    return this;
                }
        
                public TestBeanBuilder strings(List<String> strings) { 
                    testBean.setStrings(strings);
                    return this;
                }
        
                public TestBeanBuilder ddd(List<Map<String, Object>> ddd) { 
                    testBean.setDdd(ddd);
                    return this;
                }
        
                public TestBeanBuilder klk(boolean klk) { 
                    testBean.setKlk(klk);
                    return this;
                }
        
                public TestBeanBuilder dst(double dst) { 
                    testBean.setDst(dst);
                    return this;
                }
        
                public TestBean build() { 
                    return new TestBean(this.testBean);
                }
            }
        
            public void setDst(double dst) { 
                this.dst = dst;
            }
        
            public double getDst() { 
                return this.dst;
            }
        
            public void setKlk(boolean klk) { 
                this.klk = klk;
            }
        
            public boolean getKlk() { 
                return this.klk;
            }
        
            public void setDdd(List<Map<String, Object>> ddd) { 
                this.ddd = ddd;
            }
        
            public List<Map<String, Object>> getDdd() { 
                return this.ddd;
            }
        
            public void setStrings(List<String> strings) { 
                this.strings = strings;
            }
        
            public List<String> getStrings() { 
                return this.strings;
            }
        
            public void setInteters(int[] inteters) { 
                this.inteters = inteters;
            }
        
            public int[] getInteters() { 
                return this.inteters;
            }
        
            public void setMes(String mes) { 
                this.mes = mes;
            }
        
            public String getMes() { 
                return this.mes;
            }
        }

### IntelliJ IDEA ###

> 测试环境:`JDK 1.8` \+ `INTELLIJ IDEA COMMUNITY 2017.2.1`

*  下载[Builgen.jar][]
 *  `File -> Settings -> plugins -> Install Plugins From Disk`,选择下载的`jar`包并重启`IDEA`。
 *  创建`Java Bean`在编辑器内右键呼出上下文菜单,然后点击 `Generate -> Builgen`.
    
    ![idea-rk][]

[Builgen-plugin]: https://github.com/clyoudu/Builgen-plugin
[Builgen_1.0.0.201708310007.jar]: https://github.com/clyoudu/Builgen-plugin/blob/master/eclipse/Builgen/Builgen_1.0.0.201708312118.jar
[eclipse-rk]: https://github.com/clyoudu/Builgen-plugin/blob/master/eclipse/Builgen/screenshot/eclipse-rk.png?raw=true
[Builgen.jar]: https://github.com/clyoudu/Builgen-plugin/blob/master/idea/Builgen/Builgen.jar
[idea-rk]: /images/20220609/4169d78c0ad548dab0eb188ce2133393.png