IntelliJ Idea 中的 Geo Viewer 很酷-java教程-PHP中文網

你好老朋友

感謝 波茲南 Java 使用者群組 在一次聚會期間隨機選擇我來獲得 JetBrains IntelliJ Idea Ultimate 許可證，我開始每天使用它。對我來說這並不是全新的軟體。我使用 Android Studio 已經將近十年了，偶爾會在 IntelliJ 社群版中參與一些副專案。最近在工作中，我一直在使用 VS Code 和 NeoVim。與後者完全不同的 IDE 理念。

我目前恰好在後端工作，IntelliJ 絕對是一個野獸，它的內建工具可以滿足您能想像到的一切。

除了 TypeScript、SQL 和建置配置的常用語言支援之外，還有不錯的資料庫工具。資料顯示類似Excel電子表格，可以過濾，可以產生DDL程式碼，畫圖表等。沒什麼特別的；其他工具可以實現這一點。

但這只是在 IDE 內部，因此無需更改上下文即可輕鬆存取。

地理檢視器

我偶然注意到了 Geo Viewer 工具。

Geo Viewer in IntelliJ Idea is cool

我正在處理一些地理數據，例如區域和點。 Geo Viewer 開箱即用。不需要插件或配置。至少對於具有 Postgis 設定的 Postgres 來說是這樣。

這看起來可能是不必要的視覺效果，但實際上對於調試很有用。想像一下有一個查詢從一個表格傳回另一個表中定義的區域內的點。能在實際地圖上看到結果真是太棒了。

讓我們把它付諸實踐

我使用 ChatGPT 產生波蘭各省的資料。這並不完全是壞事...它們都在正確的位置，只是太小了。

城市位置的資料沒問題。

Geo Viewer in IntelliJ Idea is cool

為了在單一地理視圖上視覺化城市和區域，我使用了一個簡單的 SQL 視圖。從大學開始就沒有接觸過SQL，所以這也是一個有趣的經驗:D

-- Enable PostGIS extension if not already enabled  
CREATE EXTENSION IF NOT EXISTS postgis;  

-- Create vovoidships table  
CREATE TABLE vovoidships (  
    id SERIAL PRIMARY KEY,  
    name VARCHAR(255) NOT NULL,  
    bounds GEOMETRY NOT NULL  
);  

-- Create cities table  
CREATE TABLE cities (  
    id SERIAL PRIMARY KEY,  
    name VARCHAR(255) NOT NULL,  
    coordinates GEOMETRY NOT NULL  
);  

-- Insert Polish voivodeship capitals into cities table  
INSERT INTO cities (name, coordinates) VALUES  
    ('Warsaw', ST_SetSRID(ST_MakePoint(21.0122, 52.2297), 4326)),  -- Mazowieckie  
    ('Kraków', ST_SetSRID(ST_MakePoint(19.9449, 50.0647), 4326)),  -- Małopolskie  
    ('Łódź', ST_SetSRID(ST_MakePoint(19.456, 51.7592), 4326)),     -- Łódzkie  
    ('Wrocław', ST_SetSRID(ST_MakePoint(17.0385, 51.1079), 4326)), -- Dolnośląskie  
    ('Poznań', ST_SetSRID(ST_MakePoint(16.9286, 52.4064), 4326)),  -- Wielkopolskie  
    ('Gdańsk', ST_SetSRID(ST_MakePoint(18.646, 54.352), 4326)),    -- Pomorskie  
    ('Szczecin', ST_SetSRID(ST_MakePoint(14.5528, 53.4289), 4326)),-- Zachodniopomorskie  
    ('Bydgoszcz', ST_SetSRID(ST_MakePoint(18.0076, 53.1235), 4326)), -- Kujawsko-Pomorskie  
    ('Lublin', ST_SetSRID(ST_MakePoint(22.5686, 51.2465), 4326)),   -- Lubusz  
    ('Białystok', ST_SetSRID(ST_MakePoint(23.1641, 53.1325), 4326)), -- Podlaskie  
    ('Katowice', ST_SetSRID(ST_MakePoint(19.039, 50.2583), 4326)), -- Śląskie  
    ('Opole', ST_SetSRID(ST_MakePoint(17.9213, 50.6644), 4326)),    -- Opolskie  
    ('Rzeszów', ST_SetSRID(ST_MakePoint(21.9981, 50.0415), 4326)),  -- Podkarpackie  
    ('Gorzów Wlkp.', ST_SetSRID(ST_MakePoint(15.2299, 52.7387), 4326)), -- Lubusz  
    ('Zielona Góra', ST_SetSRID(ST_MakePoint(15.5061, 51.9353), 4326)); -- Lubusz  

-- Insert Polish voivodeships into vovoidships table with corrected boundaries  
INSERT INTO vovoidships (name, bounds) VALUES  
    ('Mazowieckie', ST_SetSRID(ST_GeomFromText('POLYGON((20.5937 52.4304, 20.7031 52.2398, 21.0994 52.1985, 21.4855 52.2738, 21.7426 52.5456, 21.4822 52.6935, 20.8778 52.6281, 20.5937 52.4304))'), 4326)),  
    ('Małopolskie', ST_SetSRID(ST_GeomFromText('POLYGON((19.0013 49.6121, 19.3004 49.2235, 19.8534 49.1386, 20.1253 49.2158, 20.3469 49.7248, 20.1154 49.9501, 19.0013 49.6121))'), 4326)),  
    ('Łódzkie', ST_SetSRID(ST_GeomFromText('POLYGON((18.9224 51.6847, 19.5032 51.5472, 19.7415 51.7594, 19.6886 52.0549, 19.1579 52.0201, 18.9224 51.6847))'), 4326)),  
    ('Dolnośląskie', ST_SetSRID(ST_GeomFromText('POLYGON((16.2795 50.1585, 16.6575 49.9253, 17.1573 49.8861, 17.3046 50.3278, 17.1566 50.4869, 16.6676 50.5302, 16.2795 50.1585))'), 4326)),  
    ('Wielkopolskie', ST_SetSRID(ST_GeomFromText('POLYGON((16.4570 52.0254, 16.9745 51.8472, 17.4446 51.8598, 17.8387 52.0295, 17.5519 52.3232, 16.4570 52.0254))'), 4326)),  
    ('Pomorskie', ST_SetSRID(ST_GeomFromText('POLYGON((17.9927 54.0531, 18.7247 54.0065, 18.7840 53.8160, 18.5911 53.7163, 17.9927 54.0531))'), 4326)),  
    ('Zachodniopomorskie', ST_SetSRID(ST_GeomFromText('POLYGON((14.2102 53.4019, 14.8960 53.3481, 15.0853 53.3305, 15.0006 53.0747, 14.2102 53.4019))'), 4326)),  
    ('Kujawsko-Pomorskie', ST_SetSRID(ST_GeomFromText('POLYGON((17.8260 53.0401, 18.2550 52.9635, 19.1827 52.9581, 19.1902 53.1355, 18.0730 53.1274, 17.8260 53.0401))'), 4326)),  
    ('Lubuskie', ST_SetSRID(ST_GeomFromText('POLYGON((14.3215 52.2755, 14.7083 52.2985, 15.0293 52.4335, 15.0641 52.5437, 14.3215 52.2755))'), 4326)),  
    ('Podlaskie', ST_SetSRID(ST_GeomFromText('POLYGON((22.7210 53.6851, 22.9785 53.4699, 23.4987 53.4057, 23.7810 53.6431, 22.7210 53.6851))'), 4326)),  
    ('Śląskie', ST_SetSRID(ST_GeomFromText('POLYGON((18.6704 50.1671, 19.0423 50.1492, 19.3875 50.2675, 19.5927 50.2046, 19.1676 50.0395, 18.6704 50.1671))'), 4326)),  
    ('Opolskie', ST_SetSRID(ST_GeomFromText('POLYGON((17.2070 50.5458, 17.4982 50.3454, 17.7513 50.2998, 17.8897 50.5008, 17.2070 50.5458))'), 4326)),  
    ('Podkarpackie', ST_SetSRID(ST_GeomFromText('POLYGON((21.1791 49.8919, 21.4867 49.8395, 21.9074 49.7579, 22.0595 49.8491, 21.1791 49.8919))'), 4326));  

CREATE VIEW CombinedVoivodeshipsCitiesView AS  
SELECT  
    'Voivodeship' AS type,  
    v.id AS id,  
    v.name AS name,  
    NULL AS latitude,  
    NULL AS longitude,  
    v.bounds AS geometry  
FROM vovoidships v  

UNION ALL  

SELECT  
    'City' AS type,  
    c.id AS id,  
    c.name AS name,  
    ST_Y(c.coordinates) AS latitude,  
    ST_X(c.coordinates) AS longitude,  
    c.coordinates AS geometry  
FROM cities c;

登入後複製

受到 Kacper Koza 上次 JUGtoberfest 演示的影響，我開始使用更多 IntelliJ 快捷方式。並關閉了標籤。到目前為止一切順利，我的滑鼠得到了休息。