Parameter verification method when routing jumps in uniapp

The parameter verification method when routing jumps in uniapp requires specific code examples

In uniapp, routing jumps are a very common operation. However, in actual development, we may need to verify the parameters passed during the jump to ensure the accuracy and security of the data. The following will introduce a parameter verification method and provide specific code examples.

1. The importance of parameter verification
   Parameter verification is an important security measure, which plays a role in protecting data during network transmission and data transfer. By verifying parameters, the integrity, correctness and legality of data can be ensured, effectively preventing malicious attacks and illegal operations.
2. Parameter verification method
   In uniapp, we can ensure the correctness of the parameters by performing parameter verification on the source routing page and the target routing page respectively.

• Parameter verification of the source routing page
  In the source routing page, we can usually obtain the parameters passed on the previous page through the method provided by uniapp. Next, we can perform legality verification on these parameters, such as checking the type, format, etc. of the parameters.

export default {
  mounted() {
    // 获取上个页面传递的参数
    const params = this.$route.params;
    
    // 参数校验
    if (!params || typeof params !== 'object') {
      // 参数为空或格式不正确，进行处理
    }

    // 继续其他操作
    // ...
  }
}

• Parameter verification of the target routing page
  In the target routing page, we can also obtain the parameters passed on the previous page through the method provided by uniapp. Next, we can perform legality verification on these parameters, such as checking the type, format, etc. of the parameters.

export default {
  mounted() {
    // 获取上个页面传递的参数
    const params = this.$route.params;
    
    // 参数校验
    if (!params || typeof params !== 'object') {
      // 参数为空或格式不正确，进行处理
    }

    // 继续其他操作
    // ...
  }
}

3. Specific example
   In the following example, we assume that there are two pages, namely page A and page B. When page A jumps to page B, a parameter needs to be passed, and the parameters need to be verified.

• A page

export default {
  methods: {
    goToBPage() {
      const params = {
        name: 'uniapp',
        version: '2.0.0'
      };
      
      // 跳转到B页面，并传递参数
      uni.navigateTo({
        url: '/pages/B/B',
        events: {
          paramsCheck: (params) => {
            // 校验参数
            if (!params || typeof params !== 'object') {
              // 参数为空或格式不正确，进行处理
            }
          }
        },
        success: (res) => {
          // 跳转成功后的处理逻辑
        }
      });
    }
  }
}

• B page

export default {
  mounted() {
    const params = this.$route.params;
    
    // 触发参数校验事件
    this.$emit('paramsCheck', params);
    
    // 校验参数
    if (!params || typeof params !== 'object') {
      // 参数为空或格式不正确，进行处理
    }

    // 继续其他操作
    // ...
  }
}

Through the above example, we can implement the Verification of parameters during route jump to ensure the integrity and correctness of parameters.

Summary
By performing parameter verification on the source routing page and the target routing page respectively, we can ensure the correctness and security of the parameters. In uniapp, the above methods can effectively prevent malicious attacks and illegal operations, and improve the security and stability of the application. Developers can expand and optimize parameter verification according to specific needs and business scenarios.

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