Use of message template placeholders

Use of message template placeholders

一 具体实现

说明：根据@Placeholders go in to match placeholders
案例：“模板名称：@[email protected],发生了变更,变更描述：@[email protected] description of the change is：@[email protected]”;

1. 占位符解析

//Parse the placeholder concatenated message template
 public String getContent(MsgType msgType, Map<String, String> messageAttrMap) {
    
		//Get a message template with placeholders
        String result = messageTypeRepo.getByCode(msgType.name()).getContentTemplate();
       //result = "模板名称：@[email protected],发生了变更,变更描述：@[email protected] description of the change is：@[email protected]";

        Pattern pattern = Pattern.compile("@(.*?)@");
        Matcher matcher = pattern.matcher(result);
        while (matcher.find()) {
    
            //占位符
            String placeholder = matcher.group();
            String key = placeholder.substring(1, placeholder.length() - 1);
            if (messageAttrMap.containsKey(key)) {
    
                String value = "null";
                if (Objects.nonNull(messageAttrMap.get(key))) {
    
                    value = messageAttrMap.get(key).trim();
                }
                result = StringUtils.replaceAll(result, placeholder, value);
               // System.out.println(result);
            }
        }
        return result;
    }

2. Assignment of placeholder parameters

  @ApiModelProperty(value = "消息模板类型",required = true)
    private MsgType msgType;
     @ApiModelProperty(value = "Properties of the message content",required = true)
    private Map<String, String> msgAttrMap;//keyThere may be duplicate attribute fields,需要替换,valueis the value of the replaced field,Placeholder for message templates