将对象转换为JSON字符串

分手后的思念是犯贱 2021-07-25 02:08 750阅读 0赞

**一 引包**

<dependency>
       <groupId>com.alibaba</groupId>
       <artifactId>fastjson</artifactId>
       <version>1.2.31</version>
    </dependency>

**二 测试方法——将对象转化为JSON字符串**

@Test
    public void objectToJSON(){
       // 前端的请求
       ReqDiffObjRuleSet reqDiffObjRuleSet = new ReqDiffObjRuleSet();
       // 设置前端请求中的简单变量
       reqDiffObjRuleSet.setObjectName("电视");
       reqDiffObjRuleSet.setPipeLineId("1");
       reqDiffObjRuleSet.setProductFamilyid("1");
       reqDiffObjRuleSet.setRelationObjName("网线");
       // 前端请求中的复杂变量
       DiffObjRuleSet diffObjRuleSet = new DiffObjRuleSet();
    
    
       // 封装复杂变量的对象
       RelationObject relationObject = new RelationObject();
       relationObject.setCompareResultRule(1);
       relationObject.setInvalidDataMode(1);
       relationObject.setMulDataMode(1);
       relationObject.setPipelineId("1");
       relationObject.setProductFamilyId("1");
       relationObject.setRelationObjectName("a");
       relationObject.setRelationType(1);
       relationObject.setUpdateRule(1);
    
    
       // 封装复杂变量的第1个列表
       List<DiffObjectAssoRuleSet> diffObjectAssoRuleSetList = new ArrayList<>();
       DiffObjectAssoRuleSet diffObjectAssoRuleSet = new DiffObjectAssoRuleSet();
       diffObjectAssoRuleSet.setAssoObjectCompareMode(1);
       diffObjectAssoRuleSet.setPipelineId("1");
       diffObjectAssoRuleSet.setPriority(1);
       diffObjectAssoRuleSet.setProductFamilyId("1");
       diffObjectAssoRuleSet.setAssoObjectCompareFieldName("a");
       diffObjectAssoRuleSet.setAssoObjectName("a");
       diffObjectAssoRuleSet.setSourceAttributeName("a");
       diffObjectAssoRuleSet.setSourceObjectName("a");
       diffObjectAssoRuleSet.setRuleName("test");
       diffObjectAssoRuleSetList.add(diffObjectAssoRuleSet);
    
    
       // 封装复杂变量的第2个列表
       List<DiffObjectUpdateRuleSet> diffObjectUpdateRuleSetList = new ArrayList<>();
       DiffObjectUpdateRuleSet diffObjectUpdateRuleSet = new DiffObjectUpdateRuleSet();
       diffObjectUpdateRuleSet.setPipelineId("1");
       diffObjectUpdateRuleSet.setProductFamilyId("1");
       diffObjectUpdateRuleSet.setInputAttributeName("a");
       diffObjectUpdateRuleSet.setInputObjectName("a");
       diffObjectUpdateRuleSet.setTargetAttributeName("a");
       diffObjectUpdateRuleSet.setTargetObjectName("a");
       diffObjectUpdateRuleSetList.add(diffObjectUpdateRuleSet);
    
    
       // 复杂变量中的对象和列表设置
       diffObjRuleSet.setRelationObject(relationObject);
       diffObjRuleSet.setDiffObjectUpdateRuleSetList(diffObjectUpdateRuleSetList);
       diffObjRuleSet.setDiffObjectAssoRuleSetList(diffObjectAssoRuleSetList);
    
    
       // 设置前端请求中的复杂变量
       reqDiffObjRuleSet.setDiffObjRuleSet(diffObjRuleSet);
    
    
       // 对象转字符串
       String s= JSON.toJSONString(reqDiffObjRuleSet);
       System.out.println(s);
    }

**三 运行结果如下**

{"diffObjRuleSet":{"diffObjectAssoRuleSetList":[{"assoObjectCompareFieldName":"a","assoObjectCompareMode":1,"assoObjectName":"a","pipelineId":"1","priority":1,"productFamilyId":"1","ruleName":"test","sourceAttributeName":"a","sourceObjectName":"a"}],"diffObjectUpdateRuleSetList":[{"inputAttributeName":"a","inputObjectName":"a","pipelineId":"1","productFamilyId":"1","targetAttributeName":"a","targetObjectName":"a"}],"relationObject":{"compareResultRule":1,"invalidDataMode":1,"mulDataMode":1,"pipelineId":"1","productFamilyId":"1","relationObjectName":"a","relationType":1,"updateRule":1}},"objectName":"电视","pipeLineId":"1","productFamilyid":"1","relationObjName":"网线"}

**四 将上面结果转化为标准格式**

[https://www.json.cn/][https_www.json.cn]

**五 控制器**

@PostMapping("/conf")
    public void diffObjAssoObjConf(@RequestBody ReqDiffObjRuleSet reqDiffObjRuleSet){
        Result result = new Result();
        System.out.println(reqDiffObjRuleSet);
    }

**六 PostMan测试**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70][]

**七 控制台打印**

ReqDiffObjRuleSet(diffObjRuleSet=DiffObjRuleSet(relationObject=RelationObject(relationObjectCode=null, relationObjectName=a, relationRuleName=null, relationType=1, compareResultRule=1, mulDataMode=1, invalidDataMode=1, updateRule=1, comparisonGroup=null, pipelineId=1, objectCode=null, productFamilyId=1), diffObjectAssoRuleSetList=[DiffObjectAssoRuleSet(ruleId=null, ruleCode=null, ruleName=test, sourceObjectCode=null, sourceObjectName=a, sourceAttributeCode=null, sourceAttributeName=a, assoObjectCode=null, assoObjectName=a, assoObjectCompareFieldCode=null, assoObjectCompareFieldName=a, assoObjectCompareMode=1, priority=1, pipelineId=1, productFamilyId=1)], diffObjectUpdateRuleSetList=[DiffObjectUpdateRuleSet(ruleId=null, ruleCode=null, ruleName=null, targetObjectCode=null, targetObjectName=a, targetAttributeCode=null, targetAttributeName=a, inputObjectCode=null, inputObjectName=a, inputAttributeCode=null, inputAttributeName=a, pipelineId=1, productFamilyId=1)]), pipeLineId=1, productFamilyid=1, objectName=电视, relationObjName=网线)

[https_www.json.cn]: https://www.json.cn/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70]: /images/20210724/561891841ee647a68c103fc683534863.png