Introduction to Java's solution to dynamic configuration field requirements

Directory

• java solves the dynamic configuration field requirements

• The following is my main implementation method

• Summary points of my implementation

• Java reads configuration fields

• Method one @Value ("{Corresponding field}")

• Method 2 introduces Environment

• Summary

java solves the need for dynamic configuration fields

Have you encountered the need for administrators to configure multiple fields for users to fill in like the picture below during development

My implementation is achieved by displaying dynamic json stored in the database

The following is my main implementation

1. First create a java entity that meets the needs Class (the following is my entity)

2. The database stores multiple fields configured by the administrator. The json generated by this entity class

3. Create a field in the business table of the database to store the field json array string configured by the user backfill administrator for processing business data

Summary points of my implementation

• Let the administrator configure how many fields there are first and then store them in the backend to prepare user backfill field data for the next time the user fills in

• The front-end fill-in page renders the json (picture of title 2) stored through the entity class for the user to fill in.

• The back-end will then fill in the configured fields after the user fills in the backfill page. Store to provide backfill data for the next edit or details

java reads configuration fields

Method 1@Value("{corresponding field}")

@Value("${authUrl}")
private String authUrl;

The trouble: @Value("${authUrl}") can only correspond to one field. If you introduce 100 fields, you have to write 100 @Value(" ${field}")

Method 2 introduces Environment

@Autowired
private Environment environment;
//获取配置文件字段
environment.getProperty("对应字段");

is more convenient than method 1. Just introduce the Environment class and use its getProperty method to get the value

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