顶会热词统计

<script src="./js/echarts-wordcloud.js"></script>

<script>
        var chart = echarts.init(document.getElementById(‘main‘));
        var postURL = "/Diploma/getData";
        var mydata = new Array();
        $.ajaxSettings.async = false;
        $.post(postURL, {}, function(rs) {
            var dataList = JSON.parse(rs);
            for (var i = 0; i < dataList.length; i++) {
                var d = {};
                d[‘name‘] = dataList[i].keyword;
                d[‘value‘] = dataList[i].value;
                mydata.push(d);
            }
        });
        $.ajaxSettings.async = true;
        var option = {
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            series : [ {
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                gridSize : 2,
                sizeRange : [ 20, 50 ],
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                height : 600,
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                            return ‘rgb(‘
                                    + [ Math.round(Math.random() * 160),
                                            Math.round(Math.random() * 160),
                                            Math.round(Math.random() * 160) ]
                                            .join(‘,‘) + ‘)‘;
                        }
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                        shadowBlur : 10,
                        shadowColor : ‘#333‘
                    }
                },
                data : mydata
            } ]
        };
        chart.setOption(option);
        chart.on(‘click‘, function(params) {
            var url = "getDiplomaLink?keyword=" + params.keyword;
            window.location.href = url;
        });
    </script>

for(Data data:dataList) {
            String name = data.getPapername();
            String[] keyword= name.split(" "); //提取每篇论文题目中出现的单词存入集合
            names = (String[]) ArrayUtils.addAll(keywords, names);
        }
        HashMap<String, Integer> name_value = new HashMap<>();

        for(String name:names) {
            name_value.put(name, !name_value.containsKey(name)?1:name_value.get(name)+1);  //利用集合的方法判断是否存在重复的值,重复的话在原来的基础上加1
        }

        for(String name:name_value.keySet()) {
            Word word = new Word();
　　　　　　　　//一般情况下有效的关键词(length>4)存入一个集合中
            if(name!=null&&(name_value.get(name)>1)&&(name.length()>4)) {
                word.setName(name);
                word.setValue(name_value.get(name));
                wordList.add(word);
            }

        }