问题：将Eclipse Groovy项目转换为Gradle项目时出现的问题。

huangapple
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英文:

Issues with converting Eclipse Groovy project to Gradle project

问题

我有一个现有的Groovy项目，是在Eclipse IDE中创建的，项目结构如下：

SposZohoMergeScript
  -- src
    -- com.xxx.sposZohoMergeScript
    -- com.xxx.sposZohoMergeScript.constants
    -- com.xxx.sposZohoMergeScript.factories
    -- com.xxx.sposZohoMergeScript.io
    -- com.xxx.sposZohoMergeScript.mergers
    -- com.xxx.sposZohoMergeScript.models
    -- com.xxx.sposZohoMergeScript.utils

我一直在手动下载、审核并将各个库和依赖的JAR文件添加到项目的构建路径中...更不用说没有内置的测试系统...我应该如何继续工作呢？！

是时候引入Gradle了！

我尝试使用Gradle插件，但它几乎立刻出现了问题...

我运行构建设置初始化步骤，它运行了很长时间...即使我去睡觉，几个小时后醒来，再次检查，它还在运行...

我关闭Eclipse IDE，打开BASH，在SposZohoMergeScript文件夹中运行 gradle init，它重新配置了我的项目。

我尝试将其设置为基本项目：

[![enter image description here][1]][1]

然后我创建了 build.gradle 文件：

/*
 * This file was generated by the Gradle 'init' task.
 *
 * This is a general purpose Gradle build.
 * Learn more about Gradle by exploring our samples at https://docs.gradle.org/7.2/samples
 */
plugins {
  id 'java'
  id 'groovy'
}

repositories {
  mavenCentral()
}

dependencies {
  // https://mvnrepository.com/artifact/org.apache.poi/poi
  implementation 'org.apache.poi:poi:5.2.3'
  // https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml
  implementation 'org.apache.poi:poi-ooxml:5.2.3'

}

然后我运行 gradle build，运行成功。之后，我打开Eclipse，不仅看到我的文件夹结构混乱...

[![enter image description here][2]][2]

但当我尝试使用键盘快捷键创建构造函数时，出现错误，代码突出显示/IntelliSense无法理解我以前编写的代码：

[![enter image description here][4]][4]

我运行 gradle dependencies 用于项目，这是我得到的：

> Task :dependencies

------------------------------------------------------------
Root project 'SposZohoMergeScript'
------------------------------------------------------------

annotationProcessor - Annotation processors and their dependencies for source set 'main'.
No dependencies

apiElements - API elements for main. (n)
No dependencies

archives - Configuration for archive artifacts. (n)
No dependencies

compileClasspath - Compile classpath for source set 'main'.
+--- org.apache.poi:poi:5.2.3
|    +--- commons-codec:commons-codec:1.15
|    +--- org.apache.commons:commons-collections4:4.4
|    +--- org.apache.commons:commons-math3:3.6.1
|    +--- commons-io:commons-io:2.11.0
|    +--- com.zaxxer:SparseBitSet:1.2
|    \--- org.apache.logging.log4j:log4j-api:2.18.0
\--- org.apache.poi:poi-ooxml:5.2.3
     +--- org.apache.poi:poi:5.2.3 (*)
     +--- org.apache.poi:poi-ooxml-lite:5.2.3
     |    \--- org.apache.xmlbeans:xmlbeans:5.1.1
     |         \--- org.apache.logging.log4j:log4j-api:2.18.0
     +--- org.apache.xmlbeans:xmlbeans:5.1.1 (*)
     +--- org.apache.commons:commons-compress:1.21
     +--- commons-io:commons-io:2.11.0
     +--- com.github.virtuald:curvesapi:1.07
     +--- org.apache.logging.log4j:log4j-api:2.18.0
     \--- org.apache.commons:commons-collections4:4.4

compileOnly - Compile only dependencies for source set 'main'. (n)
No dependencies

default - Configuration for default artifacts. (n)
No dependencies

implementation - Implementation only dependencies for source set 'main'. (n)
+--- org.apache.poi:poi:5.2.3 (n)
\--- org.apache.poi:poi-ooxml:5.2.3 (n)

runtimeClasspath - Runtime classpath of source set 'main'.
+--- org.apache.poi:poi:5.2.3
|    +--- commons-codec:commons-codec:1.15
|    +--- org.apache.commons:commons-collections4:4.4
|    +--- org.apache.commons:commons-math3:3.6.1
|    +--- commons-io:commons-io:2.11.0
|    +--- com.zaxxer:SparseBitSet:1.2
|    \--- org.apache.logging.log4j:log4j-api:2.18.0
\--- org.apache.poi:poi-ooxml:5.2.3
     +--- org.apache.poi:poi:5.2.3 (*)
     +--- org.apache.poi:poi-ooxml-lite:5.2.3
     |    \--- org.apache.xmlbeans:xmlbeans:5.1.1
     |         \--- org.apache.logging.log4j:log4j-api:2.18.0
     +--- org.apache.xmlbeans:xmlbeans:5.1.1 (*)
     +--- org.apache.commons:commons-compress:1.21
     +--- commons-io:commons-io:2.11.0
     +--- com.github.virtuald:curvesapi:1.07
     +--- org.apache.logging.log4j:log4j-api:2.18.0
     \--- org.apache.commons:commons-collections4:4.4

runtimeElements - Elements of runtime for main. (n)
No dependencies

runtimeOnly - Runtime only dependencies for source set 'main'. (n)
No dependencies

testAnnotationProcessor - Annotation processors and their dependencies for source set 'test'.
No dependencies

testCompileClasspath

<details>
<summary>英文:</summary>

I have an existing Groovy project, created with the Eclipse IDE, defined to be:

SposZohoMergeScript
-- src
-- com.xxx.sposZohoMergeScript
-- com.xxx.sposZohoMergeScript.constants
-- com.xxx.sposZohoMergeScript.factories
-- com.xxx.sposZohoMergeScript.io
-- com.xxx.sposZohoMergeScript.mergers
-- com.xxx.sposZohoMergeScript.models
-- com.xxx.sposZohoMergeScript.utils


I have been *manually* downloading, vetting, and bringing into the project build path the individual JAR files per each library and dependency... Not to mention there&#39;s no built-in system for testing... How am I supposed to keep working like this?!

It&#39;s time to bring in Gradle!

I try the Gradle plugin, and it goes sideways pretty much immediately...

I run the build setup init step, and it runs forever...even if I go to sleep, wake up a few hours later, and check back on it, it&#39;s still there...

I close the Eclipse IDE, open up the BASH, on the SposZohoMergeScript folder, run `gradle init` myself, and it re-fucktors my project. 

I try to set it up as basic project:

[![enter image description here][1]][1]

I then create the `build.gradle`:

/*

  • This file was generated by the Gradle 'init' task.
    *
  • This is a general purpose Gradle build.
  • Learn more about Gradle by exploring our samples at https://docs.gradle.org/7.2/samples
    */
    plugins {
    id 'java'
    id 'groovy'
    }

repositories {
mavenCentral()
}

dependencies {
// https://mvnrepository.com/artifact/org.apache.poi/poi
implementation 'org.apache.poi:poi:5.2.3'
// https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml
implementation 'org.apache.poi:poi-ooxml:5.2.3'

}


I then do a `gradle build`, which runs successfully. After that, I open up the Eclipse, and not only do I see my folder structure all messed up...

[![enter image description here][2]][2]

but when I go to, for example, use the keyboard shortcuts to create a constructor, it gives me error, and the highlighter/IntelliSense can&#39;t make sense of previously-working code I have written: 

[![enter image description here][4]][4]

I run `gradle dependencies` for the project, and this is what I get:

> Task :dependencies

Root project 'SposZohoMergeScript'

annotationProcessor - Annotation processors and their dependencies for source set 'main'.
No dependencies

apiElements - API elements for main. (n)
No dependencies

archives - Configuration for archive artifacts. (n)
No dependencies

compileClasspath - Compile classpath for source set 'main'.
+--- org.apache.poi:poi:5.2.3
| +--- commons-codec:commons-codec:1.15
| +--- org.apache.commons:commons-collections4:4.4
| +--- org.apache.commons:commons-math3:3.6.1
| +--- commons-io:commons-io:2.11.0
| +--- com.zaxxer:SparseBitSet:1.2
| --- org.apache.logging.log4j:log4j-api:2.18.0
--- org.apache.poi:poi-ooxml:5.2.3
+--- org.apache.poi:poi:5.2.3 ()
+--- org.apache.poi:poi-ooxml-lite:5.2.3
| --- org.apache.xmlbeans:xmlbeans:5.1.1
| --- org.apache.logging.log4j:log4j-api:2.18.0
+--- org.apache.xmlbeans:xmlbeans:5.1.1 ()
+--- org.apache.commons:commons-compress:1.21
+--- commons-io:commons-io:2.11.0
+--- com.github.virtuald:curvesapi:1.07
+--- org.apache.logging.log4j:log4j-api:2.18.0
--- org.apache.commons:commons-collections4:4.4

compileOnly - Compile only dependencies for source set 'main'. (n)
No dependencies

default - Configuration for default artifacts. (n)
No dependencies

implementation - Implementation only dependencies for source set 'main'. (n)
+--- org.apache.poi:poi:5.2.3 (n)
--- org.apache.poi:poi-ooxml:5.2.3 (n)

runtimeClasspath - Runtime classpath of source set 'main'.
+--- org.apache.poi:poi:5.2.3
| +--- commons-codec:commons-codec:1.15
| +--- org.apache.commons:commons-collections4:4.4
| +--- org.apache.commons:commons-math3:3.6.1
| +--- commons-io:commons-io:2.11.0
| +--- com.zaxxer:SparseBitSet:1.2
| --- org.apache.logging.log4j:log4j-api:2.18.0
--- org.apache.poi:poi-ooxml:5.2.3
+--- org.apache.poi:poi:5.2.3 ()
+--- org.apache.poi:poi-ooxml-lite:5.2.3
| --- org.apache.xmlbeans:xmlbeans:5.1.1
| --- org.apache.logging.log4j:log4j-api:2.18.0
+--- org.apache.xmlbeans:xmlbeans:5.1.1 ()
+--- org.apache.commons:commons-compress:1.21
+--- commons-io:commons-io:2.11.0
+--- com.github.virtuald:curvesapi:1.07
+--- org.apache.logging.log4j:log4j-api:2.18.0
--- org.apache.commons:commons-collections4:4.4

runtimeElements - Elements of runtime for main. (n)
No dependencies

runtimeOnly - Runtime only dependencies for source set 'main'. (n)
No dependencies

testAnnotationProcessor - Annotation processors and their dependencies for source set 'test'.
No dependencies

testCompileClasspath - Compile classpath for source set 'test'.
+--- org.apache.poi:poi:5.2.3
| +--- commons-codec:commons-codec:1.15
| +--- org.apache.commons:commons-collections4:4.4
| +--- org.apache.commons:commons-math3:3.6.1
| +--- commons-io:commons-io:2.11.0
| +--- com.zaxxer:SparseBitSet:1.2
| --- org.apache.logging.log4j:log4j-api:2.18.0
--- org.apache.poi:poi-ooxml:5.2.3
+--- org.apache.poi:poi:5.2.3 ()
+--- org.apache.poi:poi-ooxml-lite:5.2.3
| --- org.apache.xmlbeans:xmlbeans:5.1.1
| --- org.apache.logging.log4j:log4j-api:2.18.0
+--- org.apache.xmlbeans:xmlbeans:5.1.1 ()
+--- org.apache.commons:commons-compress:1.21
+--- commons-io:commons-io:2.11.0
+--- com.github.virtuald:curvesapi:1.07
+--- org.apache.logging.log4j:log4j-api:2.18.0
--- org.apache.commons:commons-collections4:4.4

testCompileOnly - Compile only dependencies for source set 'test'. (n)
No dependencies

testImplementation - Implementation only dependencies for source set 'test'. (n)
No dependencies

testRuntimeClasspath - Runtime classpath of source set 'test'.
+--- org.apache.poi:poi:5.2.3
| +--- commons-codec:commons-codec:1.15
| +--- org.apache.commons:commons-collections4:4.4
| +--- org.apache.commons:commons-math3:3.6.1
| +--- commons-io:commons-io:2.11.0
| +--- com.zaxxer:SparseBitSet:1.2
| --- org.apache.logging.log4j:log4j-api:2.18.0
--- org.apache.poi:poi-ooxml:5.2.3
+--- org.apache.poi:poi:5.2.3 ()
+--- org.apache.poi:poi-ooxml-lite:5.2.3
| --- org.apache.xmlbeans:xmlbeans:5.1.1
| --- org.apache.logging.log4j:log4j-api:2.18.0
+--- org.apache.xmlbeans:xmlbeans:5.1.1 ()
+--- org.apache.commons:commons-compress:1.21
+--- commons-io:commons-io:2.11.0
+--- com.github.virtuald:curvesapi:1.07
+--- org.apache.logging.log4j:log4j-api:2.18.0
--- org.apache.commons:commons-collections4:4.4

testRuntimeOnly - Runtime only dependencies for source set 'test'. (n)
No dependencies

(*) - dependencies omitted (listed previously)

(n) - Not resolved (configuration is not meant to be resolved)

A web-based, searchable dependency report is available by adding the --scan option.

BUILD SUCCESSFUL in 2s
1 actionable task: 1 executed


I am using Eclipse IDE Version: 2022-09 (4.25.0), Build id: 20220908-1902 , and Gradle 7.2, on Windows 10 64-bit computer . 

What can I do to get Gradle working with the Eclipse?


  [1]: https://i.stack.imgur.com/pvjOO.png
  [2]: https://i.stack.imgur.com/OwjfX.png
  [4]: https://i.stack.imgur.com/BvAlo.png

</details>


# 答案1
**得分**: 1

根据您的屏幕截图来看，Gradle的目录结构不正确。

按照约定，Java和Groovy插件配置其源集为`src/main/java`和`src/main/groovy`：

* Java插件：https://docs.gradle.org/current/userguide/java_plugin.html#sec:java_project_layout
* Groovy插件：https://docs.gradle.org/current/userguide/groovy_plugin.html#sec:groovy_project_layout

您的截图显示只有`src/`，然后是您的代码/包。将您的代码移动到`src/main/groovy/`（对于Groovy代码）和`src/main/java`（对于Java代码）下。

要在Eclipse中更正项目结构，请执行以下操作：

1. **右键单击**项目，选择***New > Folder***，创建文件夹**`src/main/java`**。
2. **将文件夹** **`src/com`** 移动到**`src/main/java`**。
3. **右键单击 `src/main/java`**，选择***Build Path > Use As Source Folder***。

<details>
<summary>英文:</summary>

Based on your screenshot alone, the directory structure is not correct for Gradle.

By convention, the Java and Groovy plugin configure their source sets to be `src/main/java` and `src/main/groovy`:

* https://docs.gradle.org/current/userguide/java_plugin.html#sec:java_project_layout
* https://docs.gradle.org/current/userguide/groovy_plugin.html#sec:groovy_project_layout

Your screenshot shows that you only have `src/` followed by your code/package. Move your code to be under `src/main/groovy/` for Groovy code and `src/main/java` for Java code.

To correct your project structure in Eclipse do the following:

 1. **Right-click** the **project** and choose ***New &gt; Folder*** and create the folder **`src/main/java`**
 2. **Move** the folder **`src/com` into `src/main/java`**
 3. **Right-click `src/main/java`** and choose ***Build Path &gt; Use As Source Folder***

</details>

huangapple
  • 本文由 发表于 2023年2月19日 05:25:58
  • 转载请务必保留本文链接：https://go.coder-hub.com/75496491.html
  • eclipse
  • gradle
  • java
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