Sentinel-純代碼配置(一)

限流例子:

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// 測(cè)試方法
public String test1(){
    this.initFlowQpsRule();
    return "test";
}

// 限流規(guī)則
private void initFlowQpsRule() {
        List<FlowRule> rules = new ArrayList<>();
        FlowRule rule = new FlowRule(resourceName);
        // set limit qps to 20
        rule.setCount(20);
        rule.setGrade(RuleConstant.FLOW_GRADE_QPS);
        rule.setLimitApp("default");
        rules.add(rule);
        FlowRuleManager.loadRules(rules);
}

流控-規(guī)則

private void initFlowQpsRule() {
        List<FlowRule> rules = new ArrayList<>();
        FlowRule rule = new FlowRule(resourceName);
        // set limit qps to 20
        rule.setCount(20);
        rule.setGrade(RuleConstant.FLOW_GRADE_QPS);
        rule.setLimitApp("default");
        rules.add(rule);
        FlowRuleManager.loadRules(rules);
}

降級(jí)-規(guī)則

private void initDegradeRule() {
    List<DegradeRule> rules = new ArrayList<>();
    DegradeRule rule = new DegradeRule();
    rule.setResource(KEY);
    // set threshold RT, 10 ms
    rule.setCount(10);
    rule.setGrade(RuleConstant.DEGRADE_GRADE_RT);
    rule.setTimeWindow(10);
    rules.add(rule);
    DegradeRuleManager.loadRules(rules);
}

熱點(diǎn)-規(guī)則

ParamFlowRule rule = new ParamFlowRule(resourceName)
    .setParamIdx(0)
    .setCount(5);
// 針對(duì) int 類型的參數(shù) PARAM_B,單獨(dú)設(shè)置限流 QPS 閾值為 10,而不是全局的閾值 5.
ParamFlowItem item = new ParamFlowItem().setObject(String.valueOf(PARAM_B))
    .setClassType(int.class.getName())
    .setCount(10);
rule.setParamFlowItemList(Collections.singletonList(item));
ParamFlowRuleManager.loadRules(Collections.singletonList(rule));

系統(tǒng)規(guī)則

private void initSystemRule() {
    List<SystemRule> rules = new ArrayList<>();
    SystemRule rule = new SystemRule();
    rule.setHighestSystemLoad(10);
    rules.add(rule);
    SystemRuleManager.loadRules(rules);
}

授權(quán)規(guī)則

AuthorityRule rule = new AuthorityRule();
rule.setResource("test");
rule.setStrategy(RuleConstant.AUTHORITY_WHITE);
rule.setLimitApp("appA,appB");
AuthorityRuleManager.loadRules(Collections.singletonList(rule));

分享名稱:Sentinel-純代碼配置(一)
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