如何在节点 js 中传递多个搜索参数 URL

Question

我正在使用 React、Node、Express、Postgress。我将如何使用快速路由传递多个参数？例如：

这是我的路线：

//Get entries from materials2 table
app.get("/materials2/:id1&:id2", async (req, res) => {
    try {

        const {material_thickness, material_width} = req.params;
        const contact = await pool.query(
            `SELECT *
            FROM materials_inventory
            WHERE
                (material_thickness = ) AND
                (material_width BETWEEN (-0.5) AND (+0.5))`, [material_thickness, material_width]); 


        res.json(contact.rows[0]);

    } catch (err) {
        console.error(err.message);
    }
})

我的想法是我需要将两个参数传递给搜索查询

从反应方面我有：

const stateSetter = async (thickness, width, length, length2) => {
        try {
            
            const response = await fetch(`http://localhost:5000/materials/${thickness, width}`, [thickness, width])
            const jsonData = await response.json();

            console.log(thickness);

        } catch (err) {
            console.log(err.message)
        }
    }

所以想法是 stateSetter 接收一些值，将这些值与路由一起使用。我该怎么做？谢谢！

Answer 1

您可以使用 request query。像这样更改节点中的路由：

//Get entries from materials2 table
app.get("/materials2", async (req, res) => {
    try {

        const {materialThickness, materialWidth} = req.query;
        const contact = await pool.query(
            `SELECT *
            FROM materials_inventory
            WHERE
            (material_thickness = ) AND
            (material_width BETWEEN (-0.5) AND (+0.5))`, [materialThickness, materialWidth]); 


        res.json(contact.rows[0]);

    } catch (err) {
        console.error(err.message);
    }
})

然后你像这样在前端调用：

const stateSetter = async (thickness, width, length, length2) => {
    try {
        
        const response = await fetch(`http://localhost:5000/materials2?materialThickness=${thickness}&materialWidth=${width}`)
        const jsonData = await response.json();

        console.log(thickness);

    } catch (err) {
        console.log(err.message)
    }
}

此外，您从前端调用端点 materials，但在节点中将其指定为 materials2。我在答案中更新了它，但请记住。

如何在节点 js 中传递多个搜索参数 URL

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