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data-page="{"component":"web/qna/questions/show","props":{"errors":{},"locale":"ru","language":"ru","httpsHost":"https://ru.hexlet.io","host":"ru.hexlet.io","colorScheme":"light","auth":{"user":{"id":null,"last_viewed_notification_id":null,"email":null,"state":null,"first_name":"","last_name":"","created_at":"2026-02-26T20:49:44.269Z","current_program":null,"current_team":null,"full_name":"","guest":true,"can_use_paid_features":false,"is_hexlet_employee":false,"sanitized_phone_number":"","can_subscribe":true,"can_renew_education":false}},"cloudflareTurnstileSiteKey":"0x4AAAAAAA15KmeFXzd2H0Xo","vkIdClientId":"51586979","yandexIdClientId":"88d071f1d3384eb4bd1deb37910235c7","formAuthToken":"v7cFk-VqcCrHzzqeZXjSekR-7_PRF_J5HzbXRDy0u_hQZs6kFxTdSnGMHgZpdyINhHfCWdkgDNui1k0QbrNclg","category":{"id":4,"title":"Java","slug":"java","questions_count":931,"locale":"ru"},"mainStackCategory":{"id":2,"name":"Курсы по веб-разработке","slug":"web_development","short_name":"Веб-разработка","order":190,"state":"published","category_slug":"courses_web_development"},"answerDto":{"id":null,"body":"","meta":{"model":"question_answer","relations":{}}},"question":{"creator":{"id":363630,"email":"a.agaphonov@ya.ru","first_name":"Человек-Молекула","last_name":"","telegram":null,"full_name":"Человек-Молекула","removed":false},"category":{"id":4,"title":"Java","slug":"java","questions_count":931,"locale":"ru"},"tags":[],"id":972,"answers_count":2,"slug":"kak-parsit-csv-fayly-java","state":"published","title":"Как парсить csv файлы java\r","created_at":"2021-11-23T11:30:15.195Z","details":null,"best_answer_id":1437,"related_stacks_count":5},"answers":[{"user":{"id":473565,"email":"s0108@mail.ru","first_name":"Сергей","last_name":"Якимович","telegram":"ysv0108","full_name":"Сергей Якимович","removed":false},"question":{"creator":{"id":363630,"email":"a.agaphonov@ya.ru","first_name":"Человек-Молекула","last_name":"","telegram":null,"full_name":"Человек-Молекула","removed":false},"category":{"id":4,"title":"Java","slug":"java","questions_count":931,"locale":"ru"},"tags":[],"id":972,"answers_count":2,"slug":"kak-parsit-csv-fayly-java","state":"published","title":"Как парсить csv файлы java\r","created_at":"2021-11-23T11:30:15.195Z","details":null,"best_answer_id":1437,"related_stacks_count":5},"id":1437,"state":"active","body":"Парсить csv файл можно с помощью `CsvMapper` из библиотеки `jackson`.\r\n\r\nНеобходимо подключить библиотеку в файле build.gradle :\r\n\r\n```groovy\r\ndependencies {\r\n implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-csv:2.13.0'\r\n}\r\n```\r\n\r\nПример исходного файла test.csv :\r\n\r\n```text\r\nКатал. номер;Наименование;Кол-во;Сумма, Рубли\r\n6RF 833 055 C;ДВЕРЬ З Л;1;42500.00\r\n6RF 833 056 C;ДВЕРЬ З ПР;1;42500.00\r\n6RU 845 025;СТЕКЛО З Л;1;2540.00\r\n6RU 845 026;СТЕКЛО З ПР;1;2540.00\r\n```\r\n\r\nСоздадим класс, описывающий поля нашего файла :\r\n\r\n```java\r\n@JsonPropertyOrder({ \"number\", \"name\", \"count\", \"sum\" })\r\nclass Element {\r\n public String number;\r\n public String name;\r\n public Double count;\r\n public Double sum;\r\n\r\n @Override\r\n public String toString() {\r\n return \"Element{\" + \"number=\" + number + \", name=\"\r\n + name + \", count=\" + count + \", sum=\" + sum + '}';\r\n }\r\n}\r\n```\r\n\r\nСчитаем содержимое файла в список объектов нашего класса :\r\n\r\n```java\r\nimport com.fasterxml.jackson.annotation.JsonPropertyOrder;\r\nimport com.fasterxml.jackson.databind.MappingIterator;\r\nimport com.fasterxml.jackson.dataformat.csv.CsvMapper;\r\nimport com.fasterxml.jackson.dataformat.csv.CsvSchema;\r\nimport java.io.FileReader;\r\nimport java.io.IOException;\r\nimport java.io.Reader;\r\nimport java.util.List;\r\n\r\npublic class App {\r\n public static void main(String[] args) throws IOException {\r\n String fileName = \"test.csv\";\r\n Reader myReader = new FileReader(fileName);\r\n CsvMapper mapper = new CsvMapper();\r\n CsvSchema schema = mapper.schemaFor(Element.class)\r\n .withColumnSeparator(';').withSkipFirstDataRow(true);\r\n MappingIterator<Element> iterator = mapper\r\n .readerFor(Element.class)\r\n .with(schema)\r\n .readValues(myReader);\r\n\r\n List<Element> elements = iterator.readAll();\r\n\r\n for (Element element : elements) {\r\n System.out.println(element.toString());\r\n }\r\n }\r\n}\r\n```\r\n\r\nРезультат :\r\n\r\nElement{number=6RF 833 055 C, name=ДВЕРЬ З Л, count=1.0, sum=42500.0}\r\nElement{number=6RF 833 056 C, name=ДВЕРЬ З ПР, count=1.0, sum=42500.0}\r\nElement{number=6RU 845 025, name=СТЕКЛО З Л, count=1.0, sum=2540.0}\r\nElement{number=6RU 845 026, name=СТЕКЛО З ПР, count=1.0, sum=2540.0}\r\n","votes_up_count":1,"votes_down_count":0,"created_at":"2022-12-15T10:41:16.075Z","user_id":473565,"category_slug":"java"},{"user":{"id":931314,"email":"se-la-vy@yandex.ru","first_name":"Вячеслав","last_name":"Лапин","telegram":null,"full_name":"Вячеслав Лапин","removed":false},"question":{"creator":{"id":363630,"email":"a.agaphonov@ya.ru","first_name":"Человек-Молекула","last_name":"","telegram":null,"full_name":"Человек-Молекула","removed":false},"category":{"id":4,"title":"Java","slug":"java","questions_count":931,"locale":"ru"},"tags":[],"id":972,"answers_count":2,"slug":"kak-parsit-csv-fayly-java","state":"published","title":"Как парсить csv файлы java\r","created_at":"2021-11-23T11:30:15.195Z","details":null,"best_answer_id":1437,"related_stacks_count":5},"id":4678,"state":"active","body":"Reader — это ресурс и нуждается в закрытии, так что для него нужны либо try-with-resources, либо (если в проекте есть Lombok) — аннотация @Cleanup.","votes_up_count":0,"votes_down_count":0,"created_at":"2025-01-23T11:16:07.387Z","user_id":931314,"category_slug":"java"}],"relatedQuestions":[{"creator":{"id":363630,"email":"a.agaphonov@ya.ru","first_name":"Человек-Молекула","last_name":"","telegram":null,"full_name":"Человек-Молекула","removed":false},"category":{"id":4,"title":"Java","slug":"java","questions_count":931,"locale":"ru"},"tags":[],"id":907,"answers_count":1,"slug":"kak-zapustit-konsol-java","state":"published","title":"Как запустить консоль 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{.mantine-hidden-from-lg {display: none !important;}}@media (max-width: 87.99375em) {.mantine-visible-from-xl {display: none !important;}}@media (min-width: 88em) {.mantine-hidden-from-xl {display: none !important;}}</style><script type="application/ld+json">{"@context":"https://schema.org","@type":"QAPage","mainEntity":{"@type":"Question","name":"Как парсить csv файлы java\r","answerCount":2,"datePublished":"2021-11-23T11:30:15.195Z","author":{"@type":"Person","name":"Человек-Молекула"},"acceptedAnswer":{"@type":"Answer","text":"Парсить csv файл можно с помощью `CsvMapper` из библиотеки `jackson`.\r\n\r\nНеобходимо подключить библиотеку в файле build.gradle :\r\n\r\n```groovy\r\ndependencies {\r\n implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-csv:2.13.0'\r\n}\r\n```\r\n\r\nПример исходного файла test.csv :\r\n\r\n```text\r\nКатал. номер;Наименование;Кол-во;Сумма, Рубли\r\n6RF 833 055 C;ДВЕРЬ З Л;1;42500.00\r\n6RF 833 056 C;ДВЕРЬ З ПР;1;42500.00\r\n6RU 845 025;СТЕКЛО З Л;1;2540.00\r\n6RU 845 026;СТЕКЛО З ПР;1;2540.00\r\n```\r\n\r\nСоздадим класс, описывающий поля нашего файла :\r\n\r\n```java\r\n@JsonPropertyOrder({ "number", "name", "count", "sum" })\r\nclass Element {\r\n public String number;\r\n public String name;\r\n public Double count;\r\n public Double sum;\r\n\r\n @Override\r\n public String toString() {\r\n return "Element{" + "number=" + number + ", name="\r\n + name + ", count=" + count + ", sum=" + sum + '}';\r\n }\r\n}\r\n```\r\n\r\nСчитаем содержимое файла в список объектов нашего класса :\r\n\r\n```java\r\nimport com.fasterxml.jackson.annotation.JsonPropertyOrder;\r\nimport com.fasterxml.jackson.databind.MappingIterator;\r\nimport com.fasterxml.jackson.dataformat.csv.CsvMapper;\r\nimport com.fasterxml.jackson.dataformat.csv.CsvSchema;\r\nimport java.io.FileReader;\r\nimport java.io.IOException;\r\nimport java.io.Reader;\r\nimport java.util.List;\r\n\r\npublic class App {\r\n public static void main(String[] args) throws IOException {\r\n String fileName = "test.csv";\r\n Reader myReader = new FileReader(fileName);\r\n CsvMapper mapper = new CsvMapper();\r\n CsvSchema schema = mapper.schemaFor(Element.class)\r\n .withColumnSeparator(';').withSkipFirstDataRow(true);\r\n MappingIterator<Element> iterator = mapper\r\n .readerFor(Element.class)\r\n .with(schema)\r\n .readValues(myReader);\r\n\r\n List<Element> elements = iterator.readAll();\r\n\r\n for (Element element : elements) {\r\n System.out.println(element.toString());\r\n }\r\n }\r\n}\r\n```\r\n\r\nРезультат :\r\n\r\nElement{number=6RF 833 055 C, name=ДВЕРЬ З Л, count=1.0, sum=42500.0}\r\nElement{number=6RF 833 056 C, name=ДВЕРЬ З ПР, count=1.0, sum=42500.0}\r\nElement{number=6RU 845 025, name=СТЕКЛО З Л, count=1.0, sum=2540.0}\r\nElement{number=6RU 845 026, name=СТЕКЛО З ПР, count=1.0, sum=2540.0}\r\n","datePublished":"2022-12-15T10:41:16.075Z","upvoteCount":1,"author":{"@type":"Person","name":"Сергей Якимович"},"url":"https://ru.hexlet.io/qna/java/questions/kak-parsit-csv-fayly-java#answer-1437"},"suggestedAnswer":[{"@type":"Answer","text":"Reader — это ресурс и нуждается в закрытии, так что для него нужны либо try-with-resources, либо (если в проекте есть Lombok) — аннотация @Cleanup.","datePublished":"2025-01-23T11:16:07.387Z","upvoteCount":0,"author":{"@type":"Person","name":"Вячеслав Лапин"},"url":"https://ru.hexlet.io/qna/java/questions/kak-parsit-csv-fayly-java#answer-4678"}]}}</script><div style="--container-size:var(--container-size-lg);margin-top:var(--mantine-spacing-xl);height:100%" class="m_7485cace mantine-Container-root" data-size="lg" data-strategy="block"><script type="application/ld+json">{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"position":1,"@type":"ListItem","item":{"@id":"/qna","name":"Вопросы и 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style="--title-fw:var(--mantine-h2-font-weight);--title-lh:var(--mantine-h2-line-height);--title-fz:var(--mantine-h2-font-size);margin-block:var(--mantine-spacing-xl)" class="m_8a5d1357 mantine-Title-root" data-order="2">Ответы</h2><div style="margin-bottom:var(--mantine-spacing-xl);padding:var(--mantine-spacing-lg)" class="m_e615b15f mantine-Card-root m_1b7284a3 mantine-Paper-root" data-with-border="true" id="answer-1437"><div style="--group-gap:calc(1.125rem * var(--mantine-scale));--group-align:stretch;--group-justify:flex-start;--group-wrap:nowrap" class="m_4081bf90 mantine-Group-root"><div style="--stack-gap:var(--mantine-spacing-md);--stack-align:stretch;--stack-justify:flex-start;font-size:var(--mantine-font-size-h1);font-weight:lighter;text-align:center" class="m_6d731127 mantine-Stack-root">1<a style="color:inherit" class="mantine-focus-auto m_849cf0da m_b6d8b162 mantine-Text-root mantine-Anchor-root" data-underline="hover" href="/qna/java/questions/kak-parsit-csv-fayly-java/answers/1437/vote"><div style="--ti-bg:transparent;--ti-color:var(--mantine-color-indigo-light-color);--ti-bd:calc(0.0625rem * var(--mantine-scale)) solid transparent;color:inherit" class="m_7341320d mantine-ThemeIcon-root" data-variant="transparent"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-thumb-up "><path d="M7 11v8a1 1 0 0 1 -1 1h-2a1 1 0 0 1 -1 -1v-7a1 1 0 0 1 1 -1h3a4 4 0 0 0 4 -4v-1a2 2 0 0 1 4 0v5h3a2 2 0 0 1 2 2l-1 5a2 3 0 0 1 -2 2h-7a3 3 0 0 1 -3 -3"></path></svg></div></a><div style="--ti-bg:transparent;--ti-color:var(--mantine-color-indigo-light-color);--ti-bd:calc(0.0625rem * var(--mantine-scale)) solid transparent;color:inherit" class="m_7341320d mantine-ThemeIcon-root" data-variant="transparent"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-check "><path d="M5 12l5 5l10 -10"></path></svg></div></div><div style="--stack-gap:var(--mantine-spacing-md);--stack-align:stretch;--stack-justify:flex-start;width:100%;min-width:0rem" class="m_6d731127 mantine-Stack-root"><div style="margin-bottom:auto" class="m_d08caa0 mantine-Typography-root"><p>Парсить csv файл можно с помощью <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight">CsvMapper</code> из библиотеки <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight">jackson</code>.</p>
<p>Необходимо подключить библиотеку в файле build.gradle :</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">dependencies {
implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-csv:2.13.0'
}</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Пример исходного файла test.csv :</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">Катал. номер;Наименование;Кол-во;Сумма, Рубли
6RF 833 055 C;ДВЕРЬ З Л;1;42500.00
6RF 833 056 C;ДВЕРЬ З ПР;1;42500.00
6RU 845 025;СТЕКЛО З Л;1;2540.00
6RU 845 026;СТЕКЛО З ПР;1;2540.00</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Создадим класс, описывающий поля нашего файла :</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">@JsonPropertyOrder({ "number", "name", "count", "sum" })
class Element {
public String number;
public String name;
public Double count;
public Double sum;
@Override
public String toString() {
return "Element{" + "number=" + number + ", name="
+ name + ", count=" + count + ", sum=" + sum + '}';
}
}</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Считаем содержимое файла в список объектов нашего класса :</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">import com.fasterxml.jackson.annotation.JsonPropertyOrder;
import com.fasterxml.jackson.databind.MappingIterator;
import com.fasterxml.jackson.dataformat.csv.CsvMapper;
import com.fasterxml.jackson.dataformat.csv.CsvSchema;
import java.io.FileReader;
import java.io.IOException;
import java.io.Reader;
import java.util.List;
public class App {
public static void main(String[] args) throws IOException {
String fileName = "test.csv";
Reader myReader = new FileReader(fileName);
CsvMapper mapper = new CsvMapper();
CsvSchema schema = mapper.schemaFor(Element.class)
.withColumnSeparator(';').withSkipFirstDataRow(true);
MappingIterator<Element> iterator = mapper
.readerFor(Element.class)
.with(schema)
.readValues(myReader);
List<Element> elements = iterator.readAll();
for (Element element : elements) {
System.out.println(element.toString());
}
}
}</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Результат :</p>
<p>Element{number=6RF 833 055 C, name=ДВЕРЬ З Л, count=1.0, sum=42500.0}
Element{number=6RF 833 056 C, name=ДВЕРЬ З ПР, count=1.0, sum=42500.0}
Element{number=6RU 845 025, name=СТЕКЛО З Л, count=1.0, sum=2540.0}
Element{number=6RU 845 026, name=СТЕКЛО З ПР, count=1.0, sum=2540.0}</p></div><div class="m_3eebeb36 mantine-Divider-root" data-orientation="horizontal" role="separator"></div><div style="--group-gap:var(--mantine-spacing-md);--group-align:center;--group-justify:flex-start;--group-wrap:wrap;font-size:var(--mantine-font-size-sm)" class="m_4081bf90 mantine-Group-root"><div style="--group-gap:var(--mantine-spacing-xs);--group-align:center;--group-justify:flex-start;--group-wrap:wrap;margin-inline-start:auto" class="m_4081bf90 mantine-Group-root"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-calendar "><path d="M4 7a2 2 0 0 1 2 -2h12a2 2 0 0 1 2 2v12a2 2 0 0 1 -2 2h-12a2 2 0 0 1 -2 -2v-12"></path><path d="M16 3v4"></path><path d="M8 3v4"></path><path d="M4 11h16"></path><path d="M11 15h1"></path><path d="M12 15v3"></path></svg><p class="mantine-focus-auto m_b6d8b162 mantine-Text-root" data-inherit="true">3 года назад</p></div><div style="--group-gap:var(--mantine-spacing-xs);--group-align:center;--group-justify:flex-start;--group-wrap:wrap" class="m_4081bf90 mantine-Group-root"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-user "><path d="M8 7a4 4 0 1 0 8 0a4 4 0 0 0 -8 0"></path><path d="M6 21v-2a4 4 0 0 1 4 -4h4a4 4 0 0 1 4 4v2"></path></svg><p class="mantine-focus-auto m_b6d8b162 mantine-Text-root" data-inherit="true">Сергей Якимович</p></div></div></div></div></div><div style="margin-bottom:var(--mantine-spacing-xl);padding:var(--mantine-spacing-lg)" class="m_e615b15f mantine-Card-root m_1b7284a3 mantine-Paper-root" data-with-border="true" id="answer-4678"><div style="--group-gap:calc(1.125rem * var(--mantine-scale));--group-align:stretch;--group-justify:flex-start;--group-wrap:nowrap" class="m_4081bf90 mantine-Group-root"><div style="--stack-gap:var(--mantine-spacing-md);--stack-align:stretch;--stack-justify:flex-start;font-size:var(--mantine-font-size-h1);font-weight:lighter;text-align:center" class="m_6d731127 mantine-Stack-root">0<a style="color:inherit" class="mantine-focus-auto m_849cf0da m_b6d8b162 mantine-Text-root mantine-Anchor-root" data-underline="hover" href="/qna/java/questions/kak-parsit-csv-fayly-java/answers/4678/vote"><div style="--ti-bg:transparent;--ti-color:var(--mantine-color-indigo-light-color);--ti-bd:calc(0.0625rem * var(--mantine-scale)) solid transparent;color:inherit" class="m_7341320d mantine-ThemeIcon-root" data-variant="transparent"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-thumb-up "><path d="M7 11v8a1 1 0 0 1 -1 1h-2a1 1 0 0 1 -1 -1v-7a1 1 0 0 1 1 -1h3a4 4 0 0 0 4 -4v-1a2 2 0 0 1 4 0v5h3a2 2 0 0 1 2 2l-1 5a2 3 0 0 1 -2 2h-7a3 3 0 0 1 -3 -3"></path></svg></div></a></div><div style="--stack-gap:var(--mantine-spacing-md);--stack-align:stretch;--stack-justify:flex-start;width:100%;min-width:0rem" class="m_6d731127 mantine-Stack-root"><div style="margin-bottom:auto" class="m_d08caa0 mantine-Typography-root"><p>Reader — это ресурс и нуждается в закрытии, так что для него нужны либо try-with-resources, либо (если в проекте есть Lombok) — аннотация @Cleanup.</p></div><div class="m_3eebeb36 mantine-Divider-root" data-orientation="horizontal" role="separator"></div><div style="--group-gap:var(--mantine-spacing-md);--group-align:center;--group-justify:flex-start;--group-wrap:wrap;font-size:var(--mantine-font-size-sm)" class="m_4081bf90 mantine-Group-root"><div style="--group-gap:var(--mantine-spacing-xs);--group-align:center;--group-justify:flex-start;--group-wrap:wrap;margin-inline-start:auto" class="m_4081bf90 mantine-Group-root"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-calendar "><path d="M4 7a2 2 0 0 1 2 -2h12a2 2 0 0 1 2 2v12a2 2 0 0 1 -2 2h-12a2 2 0 0 1 -2 -2v-12"></path><path d="M16 3v4"></path><path d="M8 3v4"></path><path d="M4 11h16"></path><path d="M11 15h1"></path><path d="M12 15v3"></path></svg><p class="mantine-focus-auto m_b6d8b162 mantine-Text-root" data-inherit="true">год назад</p></div><div style="--group-gap:var(--mantine-spacing-xs);--group-align:center;--group-justify:flex-start;--group-wrap:wrap" class="m_4081bf90 mantine-Group-root"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" 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style="--group-gap:calc(0.25rem * var(--mantine-scale));--group-align:center;--group-justify:flex-start;--group-wrap:nowrap" class="m_4081bf90 mantine-Group-root"><span style="font-size:var(--mantine-font-size-sm)" class="mantine-focus-auto m_b6d8b162 mantine-Text-root">16 месяцев</span><span class="mantine-focus-auto m_b6d8b162 mantine-Text-root">·</span><span style="font-size:var(--mantine-font-size-sm)" class="mantine-focus-auto m_b6d8b162 mantine-Text-root">С нуля</span></div><p style="margin-bottom:var(--mantine-spacing-sm);font-size:var(--mantine-font-size-h5);font-weight:bold" class="mantine-focus-auto m_b6d8b162 mantine-Text-root">Fullstack-разработчик на Java</p><p class="mantine-focus-auto m_b6d8b162 mantine-Text-root"></p><div style="margin-top:auto" class=""><div class="m_4451eb3a mantine-Center-root"><img style="opacity:0.8;width:70%" class="m_9e117634 mantine-Image-root mantine-visible-from-xs" 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style="cursor:pointer;height:100%"><a style="text-decoration:none" class="mantine-focus-auto m_849cf0da m_b6d8b162 mantine-Text-root mantine-Anchor-root" data-underline="hover" href="/programs/qa-auto-engineer-java?promo_name=programs_list&promo_position=qna_question&promo_creative=catalog_card&promo_type=card" target="_blank"><div style="height:100%" class="m_e615b15f mantine-Card-root m_1b7284a3 mantine-Paper-root" data-with-border="true"><div style="--group-gap:calc(0.25rem * var(--mantine-scale));--group-align:center;--group-justify:flex-start;--group-wrap:nowrap" class="m_4081bf90 mantine-Group-root"><span style="font-size:var(--mantine-font-size-sm)" class="mantine-focus-auto m_b6d8b162 mantine-Text-root">6 месяцев</span><span class="mantine-focus-auto m_b6d8b162 mantine-Text-root">·</span><span style="font-size:var(--mantine-font-size-sm)" class="mantine-focus-auto m_b6d8b162 mantine-Text-root">Для продвинутых</span></div><p 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style="cursor:pointer;height:100%"><a style="text-decoration:none" class="mantine-focus-auto m_849cf0da m_b6d8b162 mantine-Text-root mantine-Anchor-root" data-underline="hover" href="/programs/java-basics-free?promo_name=programs_list&promo_position=qna_question&promo_creative=catalog_card&promo_type=card" target="_blank"><div style="height:100%" class="m_e615b15f mantine-Card-root m_1b7284a3 mantine-Paper-root" data-with-border="true"><div style="--group-gap:calc(0.25rem * var(--mantine-scale));--group-align:center;--group-justify:flex-start;--group-wrap:nowrap" class="m_4081bf90 mantine-Group-root"><span style="font-size:var(--mantine-font-size-sm)" class="mantine-focus-auto m_b6d8b162 mantine-Text-root">1 месяц</span><span class="mantine-focus-auto m_b6d8b162 mantine-Text-root">·</span><span style="font-size:var(--mantine-font-size-sm)" class="mantine-focus-auto m_b6d8b162 mantine-Text-root">С нуля</span></div><p 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