使用 Spring Boot 使用 groovy 解析日期

Question

我用 spring boot 和 groovy 创建了一个项目，我想解析一个日期，但我不明白为什么我会出错。

例如，我创建了一个用于解析日期的基本类

这是我的课

class Test {
public static void main(String ...args){
    String oldDate = '04-DEC-2012'
    Date date = Date.parse( 'dd-MMM-yyyy', oldDate )
    String newDate = date.format( 'M-d-yyyy' )
}
}

我得到了错误，

Exception in thread "main" groovy.lang.MissingMethodException: No signature of method: static java.util.Date.parse() is applicable for argument types: (String, String) values: [dd-MMM-yyyy, 04-DEC-2012]
Possible solutions: parse(java.lang.String), wait(), clone(), any(), grep(), use([Ljava.lang.Object;)
    at groovy.lang.MetaClassImpl.invokeStaticMissingMethod(MetaClassImpl.java:1525)
    at groovy.lang.MetaClassImpl.invokeStaticMethod(MetaClassImpl.java:1511)
    at org.codehaus.groovy.runtime.callsite.StaticMetaClassSite.call(StaticMetaClassSite.java:50)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:115)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:135)

我的pom文件是

<project xmlns="http://maven.apache.org/POM/4.0.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
        http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<packaging>jar</packaging>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.2.2.RELEASE</version>
</parent>

<groupId>com.xxx</groupId>
<artifactId>xxxxx</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>xxxxx</name>
<description>Demo project for Spring Boot</description>

<properties>
    <java.version>1.8</java.version>
</properties>

<dependencies>
    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-jpa -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-websocket</artifactId>
    </dependency>
    <!-- https://mvnrepository.com/artifact/commons-lang/commons-lang -->
    <dependency>
        <groupId>commons-lang</groupId>
        <artifactId>commons-lang</artifactId>
        <version>2.6</version>
    </dependency>

    <dependency>
        <groupId>org.codehaus.groovy</groupId>
        <artifactId>groovy</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
        <optional>true</optional>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.codehaus.groovy/groovy-json-->
    <dependency>
        <groupId>org.codehaus.groovy</groupId>
        <artifactId>groovy-json</artifactId>
        <version>3.0.0-rc-2</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.codehaus.groovy/http-builder -->
    <dependency>
        <groupId>org.codehaus.groovy</groupId>
        <artifactId>http-builder</artifactId>
        <version>0.4.0</version>
    </dependency>

    <!--cliente rest -->
    <dependency>
            <groupId>com.mashape.unirest</groupId>
            <artifactId>unirest-java</artifactId>
            <version>1.4.9</version>
    </dependency>

    <dependency>
        <groupId>javax.inject</groupId>
        <artifactId>javax.inject</artifactId>
        <version>1</version>
    </dependency>

    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger2</artifactId>
        <version>2.6.1</version>
        <scope>compile</scope>
    </dependency>

    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger-ui</artifactId>
        <version>2.6.1</version>
        <scope>compile</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
        <exclusions>
            <exclusion>
                <groupId>org.junit.vintage</groupId>
                <artifactId>junit-vintage-engine</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>org.codehaus.gmavenplus</groupId>
            <artifactId>gmavenplus-plugin</artifactId>
            <version>1.8.1</version>
            <executions>
                <execution>
                    <goals>
                        <goal>addSources</goal>
                        <goal>addTestSources</goal>
                        <goal>generateStubs</goal>
                        <goal>compile</goal>
                        <goal>generateTestStubs</goal>
                        <goal>compileTests</goal>
                        <goal>removeStubs</goal>
                        <goal>removeTestStubs</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

我可能需要一些额外的配置吗？ 我读了一些帖子我只需要 Date.parse("format","date") 但由于某种原因我不明白我做错了什么

Answer 1

添加 groovy date-util 包

https://mvnrepository.com/artifact/org.codehaus.groovy/groovy-dateutil

Answer 2

我将 groovy 的版本从 2.5.8 更改为 3.0.0-alpha-1，问题解决了

所以我修改了我的 pom.xml 文件

我删除了这个依赖

 <dependency>
            <groupId>org.codehaus.groovy</groupId>
            <artifactId>groovy</artifactId>
        </dependency>

我添加这一行

    <dependency>
            <groupId>org.codehaus.groovy</groupId>
            <artifactId>groovy</artifactId>
            <version>3.0.0-alpha-1</version>
        </dependency>

我从来没有添加依赖 date-util 。

感谢大家的支持