java 多執行緒操作 安全操作 synchronized

記錄程式碼如下

Thread myThread = new Thread(new Runnable() {
    @Override
    public void run() {
        // synchronized來鎖住list
        String vectorQuantity = "";
        try {
            vectorQuantity = httpService.sendGet("xxx", finalRequestParams);
        } catch
 
 (Exception e) {
            e.printStackTrace();
        }
        linkobjct.setParams(vectorQuantity);
        if(null != vectorQuantity && !vectorQuantity.isEmpty()) {
            synchronized (params) {
                params.add(linkobject);
            }
        } else {
            synchronized
 
 (requestFail) {
                requestFail.add(str);
            }
        }
    }
});

歡迎交流～