Nix.Huang |

国产鸿鹄监控logback日志

2月 1, 2023 | Nix.Huang

安装vector curl –proto ‘=https’ –tlsv1.2 -sSf https://s […more]

lombok.javac.apt.LombokProcessor could not be initialized解决办法

1月 31, 2023 | Nix.Huang

最近将IDEA 升级到IntelliJ IDEA 2022.3.1后原来可以运行的工程启动报: java: l […more]

Liquibase changelog 传参

1月 29, 2023 | Nix.Huang

changelog文件

--changeset javacoder:5 dbms:mysql
--preconditions onFail:MARK_RAN onError:HALT
--precondition-sql-check expectedResult:1 select count(1) from information_schema.COLUMNS where table_name='user' and column_name='email' and table_schema='${schema}'
--comment: 删除user.email 字段

ALTER TABLE user
    DROP COLUMN `email`;

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--changeset javacoder:5 dbms:mysql

--preconditions onFail:MARK_RAN onError:HALT

--precondition-sql-check expectedResult:1 select count(1) from information_schema.COLUMNS where table_name='user' and column_name='email' and table_schema='${schema}'

--comment: 删除user.email 字段

ALTER TABLE user

DROP COLUMN `email`;

使用 ${schem […more]

Spring WebFlux无法注入RelationalEntityInformation

1月 28, 2023 | Nix.Huang

开始UserRepository定义如下

@Repository
public class UserRepository extends  SimpleR2dbcRepository<User, Integer> {

    public UserRepository(RelationalEntityInformation<User, Integer> entity,
                          R2dbcEntityOperations entityOperations,
                          R2dbcConverter converter) {
        super(entity, entityOperations, converter);
    }
}

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@Repository

public class UserRepository extends SimpleR2dbcRepository<User, Integer> {

public UserRepository(RelationalEntityInformation<User, Integer> entity,

R2dbcEntityOperations entityOperations,

R2dbcConverter converter) {

super(entity, entityOperations, converter);

}

报 […more]

LockSupport简介

1月 11, 2023 | Nix.Huang

LockSupport简介 java并发包中很多类都基于LockSupport实现锁，而Thread.susp […more]

大文件上传

1月 10, 2023 | Nix.Huang

nginx 配置 client_max_body_size spring配置项 spring.servlet. […more]

HttpClient 使用chunked上传文件

1月 10, 2023 | Nix.Huang

java代码

CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost post = new HttpPost(url);
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
builder.setBoundary("123456789");
builder.setCharset(java.nio.charset.Charset.forName("UTF-8"));
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);

// 文件流
builder.addBinaryBody("file", getInputStream(), ContentType.DEFAULT_BINARY, "xyz.txt");
builder.addPart("type", new StringBody("0", ContentType.TEXT_PLAIN));

//Finally
post.setEntity(builder.build());
CloseableHttpResponse response = httpClient.execute(post);
response.getEntity().writeTo(System.out);

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CloseableHttpClient httpClient = HttpClients.createDefault();

HttpPost post = new HttpPost(url);

MultipartEntityBuilder builder = MultipartEntityBuilder.create();

builder.setBoundary("123456789");

builder.setCharset(java.nio.charset.Charset.forName("UTF-8"));

builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);

// 文件流

builder.addBinaryBody("file", getInputStream(), ContentType.DEFAULT_BINARY, "xyz.txt");

builder.addPart("type", new StringBody("0", ContentType.TEXT_PLAIN));

//Finally

post.setEntity(builder.build());

CloseableHttpResponse response = httpClient.execute(post);

response.getEntity().writeTo(System.out);

生成的报文 POST /ebo […more]

CSS 相对单位em和rem

1月 6, 2023 | Nix.Huang

em相对于父级元素的排版大小，(typography,指定了font-size就以父元素的font-size为 […more]

使用axios发送Ajax理由

1月 2, 2023 | Nix.Huang

使用axios发送Ajax理由使用XMLHttpRequest 发送Ajax请求已经很简单，为啥很多工程使用 […more]

spring websocket连接被中断

12月 29, 2022 | Nix.Huang

code=1009, reason=The decoded text message was too big […more]

知行合一，止于至善

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